Your cat comes home with a small bite mark near its eye. You assume it was a mosquito or a stray ant. But what if it was something else a nocturnal blood-feeder called a kissing bug, carrying a parasite that can quietly damage your cat's heart over months or years?

This is not a disease most Indian cat parents have heard of. But for cat owners in South America, Central America, parts of the southern United States, and increasingly in tropical and subtropical regions worldwide, Chagas disease is a known and serious concern. And as climate change pushes vector ranges outward, and as travel and global trade connects previously isolated ecosystems, this is a condition that informed cat owners everywhere should understand.

This guide explains exactly what Chagas disease is, how cats get infected, what it does to their body, what the signs look like, and what you should know about risk wherever you live.

Key Takeaways

• Chagas disease is caused by a protozoan parasite called Trypanosoma cruzi, transmitted primarily through the bites and droppings of blood-sucking insects called kissing bugs (triatomine bugs).
• Cats can be infected with Chagas disease, but according to the Merck Veterinary Manual, serious illness in cats is rare making it easy to miss.
• The disease has two phases: acute (short-term, often mild or silent) and chronic (long-term, potentially causing serious heart disease).
• The most dangerous consequence in chronic infection is cardiac damage including heart failure, arrhythmias, and sudden death.
• Trypanosoma cruzi is also a human pathogen infected cats and other animals can bring the parasite closer to people, increasing household risk.
• Chagas disease is endemic in 21 countries across the Americas. It is also an emerging concern in parts of Asia and Europe due to migration and the global spread of triatomine insects.
• There is no vaccine for Chagas disease. Prevention depends on controlling the insect vector and keeping cats away from infected animals.

What Is Chagas Disease?

Chagas disease, also called American trypanosomiasis, is a serious parasitic infection caused by a single-celled organism called Trypanosoma cruzi. According to the Merck Veterinary Manual, it is found mainly in Central and South America and in parts of the southern United States.

The name comes from Dr. Carlos Chagas, the Brazilian physician who first described and identified the disease in 1909. More than a century later, the World Health Organization classifies Chagas disease as one of the world's neglected tropical diseases meaning it disproportionately affects people and animals in lower-income, rural, and tropical regions where it receives far less research and attention than its actual disease burden deserves.

T. cruzi infects more than 100 mammalian species. According to the Merck Veterinary Manual's professional edition on trypanosomiasis, all mammals are considered susceptible. Avian species (birds) are not affected. In domestic animals, dogs are the most commonly and most severely affected but cats can also become infected.

The critical distinction for cat owners: while cats can be infected, the Merck Veterinary Manual specifically notes that serious illness in cats is rare. This does not mean infection is harmless. It means that many infected cats will not show obvious signs for a long time which is actually more dangerous, because the parasite may be quietly damaging the heart during that silent period.

The Kissing Bug: The Insect Behind the Infection

The primary vector of T. cruzi is a blood-sucking insect belonging to the subfamily Triatominae a group of bugs with several common names that all reflect their behaviour or appearance.

• Kissing bug (because they typically bite around the face and lips)
• Assassin bug (a broader name for the family)
• Reduviid bug (from the family Reduviidae)
• Vinchuca in South America
• Barbeiro in Brazil
• Chinche in Mexico and Central America

There are over 130 species of triatomine bugs in the Americas alone. Most are nocturnal they hide in cracks, crevices, thatched roofs, mud walls, and animal shelters during the day, and emerge at night to feed on sleeping hosts. According to the Merck Veterinary Manual, the insects belong to the genera Triatoma, Rhodnius, and Panstrongylus.

How the Kissing Bug Transmits the Parasite

The transmission mechanism of Chagas disease is unusual and important to understand because it does not work the way most people assume.

When a kissing bug bites an infected animal and ingests its blood, the T. cruzi parasites enter the bug's gut. The parasites multiply and mature there, eventually moving to the hindgut where they become the infective form (called metacyclic trypomastigotes). The bug then excretes these infective parasites in its faeces usually near the site where it bites.

Infection then happens not through the bite itself, but when:

• The infected droppings contact the bite wound (because the host scratches the itch)
• The droppings reach the eyes, mouth, or a mucous membrane
• A person or animal ingests infected material

This is why the Merck Veterinary Manual specifically states: "a person or animal can become infected if the droppings containing the parasite get into the bite or another skin wound, the eyes, or the mouth."

It is also why a swollen eye (called a Romaña sign in humans) is sometimes the first visible sign of Chagas disease if infected droppings reach the eye directly.

How Do Cats Get Infected?

According to the Merck Veterinary Manual, cats can become infected with T. cruzi through several routes:

The kissing bug bite route the most common. An infected triatomine bug bites the cat and defecates near the bite. If the cat scratches the area and the droppings enter the wound, infection can occur.

Eating infected insects — cats are natural hunters and often eat insects they catch. In insectivorous animals, consuming infected bugs or materials contaminated with infected triatomine faeces is considered a major mode of transmission by the Merck Veterinary Manual.

Eating infected reservoir animals — wild animals like rodents, opossums, and small mammals are reservoirs of T. cruzi. Cats that hunt and consume these animals can become infected through the tissues they eat.

Transplacental transmission — an infected pregnant cat can pass the parasite to unborn kittens through the placenta. This is a less common route but documented.

Blood transfusions very rarely, if infected blood is used in a transfusion (which is a concern managed through blood screening in endemic areas).

This is also why cats that go outdoors, hunt prey, or live near wildlife-rich environments carry a higher risk than strictly indoor cats.

What Does Chagas Disease Do Inside a Cat's Body?

Understanding the biology of T. cruzi inside the body explains why the disease behaves the way it does and why the damage often goes unnoticed until it is severe.

Once the metacyclic trypomastigotes enter the bloodstream, they do something most parasites cannot: they actively invade the cells of many tissues. They exit into the cell interior and transform into a non-moving form called amastigotes. These amastigotes then divide inside the cell every 15 to 18 hours for 5 to 6 days.

According to the Merck Veterinary Manual, T. cruzi has a particular affinity for a tropism for cardiac muscle and smooth muscle. In plain terms: the parasite prefers to live and replicate inside heart muscle cells and the muscle cells lining the digestive tract.

After replicating, the amastigotes transform back into trypomastigotes, burst out of the cell (killing it in the process), and infect new cells. This is the mechanism behind the damage. Every time a cell bursts, it releases both parasites and an inflammatory signal. The immune system responds but in doing so, adds its own layer of damage to the already stressed heart muscle.

Over time, this cycle of cell invasion, replication, cell death, and immune response leads to:

• Progressive destruction and scarring of heart muscle tissue
• Enlargement of the heart chambers
• Abnormal electrical signals in the heart (arrhythmias)
• Eventually, reduced pumping ability and congestive heart failure

Acute Phase: The First Signs

Chagas disease in cats (and other mammals) follows two phases. The first is the acute phase.

The incubation period the time between infection and the appearance of signs ranges from 5 to 42 days according to the Merck Veterinary Manual.

During the acute phase, the parasite is still circulating in large numbers in the bloodstream. This is called parasitaemia. Signs during this phase may be completely absent, or they may be mild and non-specific the kind that is easy to attribute to dozens of other causes.

In dogs (where this phase is better documented and more severe), the Merck Veterinary Manual notes: fever, swollen lymph nodes, loss of appetite, lethargy, vomiting, diarrhoea, and enlarged liver or spleen. Rarely, acute heart inflammation (myocarditis) is seen.

In cats, the acute phase tends to be even milder. Your cat may appear simply tired and off its food. There may be a small chagoma a localised skin reaction at the site where the bug's droppings entered the body. If the droppings reached the eye, the conjunctiva (the membrane around the eye) may be swollen.

The critical issue: parasitaemia peaks around 2 to 3 weeks after infection, then dissipates. The parasite moves from the bloodstream into the tissues. At this point, the acute phase symptoms (if any existed) often resolve and the cat may appear to recover completely. This is the most dangerous transition in the disease.

Chronic Phase: The Hidden Heart Danger

After the acute phase, the disease enters the latent (hidden) phase, which can last for months to years. During this period, the cat shows no obvious signs. The parasite, however, has not been eliminated it is living and replicating inside heart muscle cells, causing slow, cumulative damage.

The Merck Veterinary Manual describes the chronic phase in dogs as beginning with generalised weakness or sudden death. In the symptomatic chronic phase, common presentations include:

• Right-sided congestive heart failure — the right side of the heart weakens and can no longer pump blood efficiently to the lungs
• Myocarditis — ongoing inflammation of the heart muscle
• Arrhythmias — abnormal heart rhythms that may cause fainting, sudden weakness, or sudden death
• Bilateral cardiac dilation — both sides of the heart enlarge as the muscle weakens

In cats, the chronic disease is less commonly documented than in dogs, but the underlying mechanism is identical. A cat with T. cruzi living in its heart muscle is at risk of the same progressive cardiac damage over time.

Think of it like this: the parasite is a slow fire burning inside the heart muscle. The fire may be small enough that the cat shows no distress for years. But with each cycle of cell invasion and death, the fire spreads a little further. By the time the cat shows signs of heart failure laboured breathing, weakness, fluid accumulation, collapse a significant portion of the cardiac muscle has already been permanently replaced by scar tissue.

This is why the WHO estimates that in people, up to 30% of those chronically infected with T. cruzi develop cardiac complications many without ever having noticed the initial infection.

Why Chagas Disease Is Hard to Spot in Cats

Several factors conspire to make Chagas disease one of the most easily missed diagnoses in veterinary medicine:

Cats mask illness. Cats are evolutionary experts at hiding signs of disease. A wild cat showing weakness is a target for predators so the instinct to appear normal runs deep in all domestic cats. By the time an owner notices something is wrong, the cat may be far into the chronic phase of any condition, including Chagas.

The acute phase is usually silent or vague. Lethargy and reduced appetite could be caused by dozens of conditions. Without specific testing, there is no way to distinguish early Chagas infection from, say, a mild upper respiratory infection or gastrointestinal upset.

The latent phase has no signs. There is no external indication that the parasite is quietly damaging the heart during this period. Blood work may not show the parasite. Routine physical examination will appear normal.

The chronic signs mimic other heart diseases. By the time heart failure, arrhythmias, or cardiac enlargement appear, they look identical on initial examination to many other causes of feline heart disease (such as hypertrophic cardiomyopathy, which is the most common heart condition in cats). Without the index of suspicion without knowing the cat was exposed to triatomine bugs a vet may not think to test for T. cruzi.

No routine screening exists. Chagas disease is not part of standard wellness blood panels anywhere in the world. It is only tested for when it is specifically suspected.

If your cat has been in a Chagas-endemic area, or if you live in a tropical or subtropical region with known triatomine insect populations, this information belongs in your vet's hands.

How Is Chagas Disease Diagnosed in Cats?

According to the Merck Veterinary Manual, diagnosis of Chagas disease can be made through three main approaches:

1. Visualisation of the Parasite

During the acute phase, when parasitaemia is at its peak, a microscope examination of a routine blood smear may detect the parasite directly. On Giemsa staining, T. cruzi appears as an extracellular, C-shaped protozoan with a single flagellum a tail-like structure it uses to move.

This approach is only reliable during the 2 to 3 week acute window. After that, the parasite retreats into tissues and is no longer circulating in detectable numbers in the blood.

2. Antibody Testing (Primary for Chronic Phase)

Antibody testing is the most important diagnostic tool during the chronic phase, when the parasite is no longer freely circulating. The cat's immune system has produced antibodies against T. cruzi, and these can be detected in whole blood, plasma, or serum.

Testing methods include immunofluorescent antibody (IFA) tests, ELISA (enzyme-linked immunosorbent assay), and immunochromatographic dipstick tests.

An important caveat: cross-reactivity can occur with antibodies to Leishmania species, another protozoan parasite found in similar tropical and subtropical regions. Because of this, the Merck Veterinary Manual recommends using at least two different testing methodologies to confirm a positive result.

3. PCR (Molecular Testing)

PCR (polymerase chain reaction) can detect the DNA of T. cruzi in blood samples or cardiac tissue. It is more sensitive than microscopy but is not widely available in routine field or clinical laboratory settings. It is most useful for confirming diagnosis in research settings or specialist referral centres.

Supporting Investigations for Cardiac Involvement

If Chagas disease is suspected and cardiac signs are present, your vet may also recommend:

• Echocardiography (heart ultrasound) to assess chamber size and heart muscle function
• Electrocardiogram (ECG) to detect arrhythmias
• Chest X-rays to look for heart enlargement or fluid

Is There Treatment?

This is where the prognosis becomes more sobering.

For the antiparasitic treatment of Chagas disease itself, the Merck Veterinary Manual identifies benznidazole as the drug of choice, with nifurtimox as an alternative. In dogs, benznidazole is given at 5 to 10 mg/kg per day orally for 2 months.

However, there are critical limitations:

Treatment is most effective in the acute phase. Once the parasite has moved into the tissues and the chronic phase begins, antiparasitic treatment has much less impact on the already-established cardiac damage. The parasite load decreases, but the fibrosis (scarring) already laid down in the heart muscle does not reverse.

No vaccine exists. The Merck Veterinary Manual explicitly states: "No vaccine for Chagas disease is available." Prevention, not cure, is the primary strategy.

Drug availability varies by country. In many countries outside endemic Latin American regions, benznidazole and nifurtimox require special regulatory approval or investigational protocols to obtain legally. In India, neither drug is in routine veterinary or medical use.

Symptomatic cardiac management treating the heart failure, arrhythmias, and fluid accumulation is used alongside antiparasitic treatment or as the primary management approach when the chronic cardiac phase is already established.

If you are living in or have recently returned from a Chagas-endemic country and have a cat that is showing cardiac signs, inform your vet of the travel history. The index of suspicion matters enormously for getting the right diagnosis.

Chagas Disease and Human Risk: What Cat Owners Must Know

Trypanosoma cruzi is a zoonotic pathogen it can infect humans as well as animals. The World Health Organization estimates that approximately 7 to 8 million people worldwide are infected with T. cruzi, most of them in Latin America, and most of them unaware of their infection.

For cat owners, the key point from the Merck Veterinary Manual is this: infected animals, including cats, can serve as sources of infection for the insects. Animals that harbour the parasite help the disease continue to spread they become hosts that infected kissing bugs feed from, and then go on to bite people.

Cats can also bring the parasite into homes, increasing the chance of people becoming exposed to it. This is not because the cat itself is directly infectious to people (you cannot catch Chagas disease simply by touching an infected cat), but because an infected cat acts as a reservoir increasing the local parasite load available to triatomine insects circulating in and around the home.

The Real Human Risk

Humans typically become infected the same way as cats and dogs through the droppings of kissing bugs. The most common scenario is a sleeping person being bitten at night, then inadvertently rubbing the infected droppings into the bite, their eye, or their mouth.

Additional routes include:

• Eating food or drink contaminated with T. cruzi-infected triatomine droppings
• Blood transfusion from an infected donor (managed through screening in endemic countries)
• Organ transplant from an infected donor
• Congenital transmission from an infected pregnant woman to her unborn child

In people, the WHO notes that without early diagnosis and treatment, up to one in three chronically infected individuals develop cardiac complications, and one in ten develops digestive, neurological, or mixed complications.

Global Risk: Where Chagas Disease Is Found Today

Chagas disease was historically confined to the Americas. The Merck Veterinary Manual (professional edition) notes it is endemic in 21 countries of South America, Central America, and Mexico. It is also increasingly reported in the southern United States, where the CDC has now classified it as endemic.

But geographic boundaries are not static.

Human and animal migration has introduced Chagas disease to Europe, where it is now described by the Merck Veterinary Manual as an emerging disease in Spain, Switzerland, France, Italy, Germany, and England primarily through infected migrants from endemic regions.

In Asia, one triatomine species Triatoma rubrofasciata is uniquely significant. Unlike other triatomine species that are confined to the Americas, T. rubrofasciata is distributed globally. Research published in PubMed (PMC4489469) confirms it is found in several Asian countries including India, Vietnam, Thailand, and China, and is closely associated with human environments. In the Americas, this species transmits T. cruzi. In Asia, the same species has been found to carry other related trypanosomes (Trypanosoma conorhini and Trypanosoma lewisi), but is not currently confirmed as a vector for T. cruzi in Asian populations.

However, this creates an important reason for vigilance:

• Triatomine bugs are already present in parts of India and tropical Asia.
• The same insect that transmits Chagas disease in the Americas is biting cats, dogs, and people in Indian and Asian tropical environments.
• As intercontinental travel and trade increase, the conditions for vector-borne disease range expansion are actively in place.

The Pan American Health Organization states clearly: "Triatomine bugs can infect rodents, marsupials and other wild mammals. These triatomine bugs can also infect domesticated animals such as dogs and cats, and bring the T. cruzi (agent of the disease) inside human dwellings."

Prevention: Protecting Your Cat and Your Home

There is no vaccine for Chagas disease. The Merck Veterinary Manual is explicit on this. Prevention therefore rests entirely on controlling the insect vector and reducing the conditions that allow triatomine bugs to thrive in and around homes.

Practical prevention steps for cat owners:

Reduce hiding places for triatomine bugs. These insects nest in cracks in walls, thatched roofing, mud or adobe structures, wood piles, and animal shelters. Sealing cracks in walls and maintaining well-constructed, well-sealed housing significantly reduces the risk of infestation.

Turn off outdoor lights at night. The Merck Veterinary Manual specifically mentions this as a vector control measure. Triatomine bugs are attracted to light and fly toward illuminated structures at night. Minimising outdoor lighting, especially near sleeping areas and animal enclosures, reduces insect attraction.

Use insecticide treatments on walls and surrounding areas in endemic regions, particularly in rural or peri-urban settings. This is most relevant in the Americas but applies wherever triatomine populations exist.

Keep your cat protected from biting insects year-round. Broad-spectrum antiparasitic treatments protect against a wide range of blood-sucking insects, including those that may carry T. cruzi. Products like SELAMEC CAT SPOT ON by Petcare (Upto 15% OFF on Animeal) contain selamectin a broad-spectrum antiparasitic effective against fleas, ticks, mites, heartworms, and roundworms. FLICKOUT F SPOT ON FOR CAT by Adisan (Upto 15% OFF on Animeal) uses the fipronil and S-methoprene combination to eliminate and prevent re-infestation of ectoparasites. SAFELINE SPOT ON by Hester Biosciences (Upto 15% OFF on Animeal) provides up to four weeks of continuous flea and tick protection with its dual-molecule formula. While these products are primarily formulated for fleas and ticks, maintaining your cat's protection from blood-sucking insects broadly reduces exposure risk.

Prevent your cat from hunting wild rodents and insects in high-risk areas. The ingestion of infected prey is a significant transmission route in cats. Keeping cats indoors or in enclosed outdoor spaces reduces contact with wild reservoir animals.

Screen blood donors in areas where Chagas disease is endemic. If your cat requires a transfusion, this is worth discussing with your vet in endemic regions.

Inform your vet if you travel to or from endemic areas. This single piece of information can be the difference between a correct diagnosis and a missed one.

What Indian and Tropical Region Cat Parents Should Know

Most of this blog has discussed Chagas disease in the context of the Americas, where it is well-established. For cat parents in India, Southeast Asia, and other tropical regions, the picture is different but not irrelevant.

T. rubrofasciata is present in India and Asia

Research confirms that Triatoma rubrofasciata the only globally distributed triatomine species is found in India and across tropical Asia. It bites humans, cats, and dogs in domestic settings. In the Americas, this is the insect that transmits T. cruzi. In Asia, it currently carries related but different trypanosomes, and is not confirmed to transmit T. cruzi in the local population.

However, cat owners in India should be aware that kissing bugs are not an exotic, faraway insect. They are likely already present in your environment particularly in rural, peri-urban, and forested areas where wild rodents are common.

Why lethargy and loss of appetite always need a vet

A cat showing persistent lethargy, reduced appetite, or weakness even without any obvious cause should always be seen by a vet. These are the same signs that appear in early Chagas disease, in blood parasitic infections, in feline heart disease, and in many other serious conditions that are far more common in India than Chagas.

For a complete guide on recognising when a cat's low energy is a warning sign, see our guide on How to Prevent Lethargy in Your Cat. For understanding what a cat's appetite changes mean and when to act urgently, see CAT NOT EATING BUT ACTIVE — SHOULD I WORRY?

Parasites and hearts are connected

The cardiac damage of Chagas disease is an extreme example of a principle that applies to all parasitic infections: parasites do not just cause temporary illness. They can cause lasting organ damage to the heart, liver, kidneys, and lungs if left untreated. This is why knowing when to call a vet, and doing so promptly, genuinely matters. See Early Illness Signs: When to Call the Vet for a full guide on cat emergency signs.

Keep your cat protected from blood-sucking insects year-round

In India's tropical climate, fleas, ticks, mosquitoes, and other biting insects are year-round threats not seasonal ones. Keeping your cat on a regular, vet-recommended anti-parasite protocol is not just about preventing flea infestations. It reduces your cat's total blood-sucking insect exposure, which matters for the full range of insect-borne illnesses, including any future risk from triatomine bugs carrying pathogens.

Travel to the Americas changes your risk profile entirely

If you are moving to, working in, or travelling through South America, Central America, or Mexico with your cat, Chagas disease risk becomes directly relevant. Inform your vet before you travel. Ensure your cat is on comprehensive parasite protection. Keep your cat from hunting wild animals in those regions. Be vigilant for signs of insect bites around the face and eyes.

FAQ Section

Can my cat give me Chagas disease?
Not directly. You cannot catch Trypanosoma cruzi simply by touching, handling, or living with an infected cat. The parasite is transmitted through the droppings of triatomine (kissing) bugs not through the cat's saliva, urine, or physical contact. However, an infected cat acts as a reservoir host: kissing bugs that feed on your infected cat can then carry the parasite and transmit it to you through their droppings. In this indirect sense, an infected cat increases the risk of transmission in an environment where kissing bugs are also present. Managing the insect vector is the key to protecting both your cat and yourself.

Are there kissing bugs in India?
Yes Triatoma rubrofasciata, the only globally distributed triatomine species, is found in India and other parts of tropical Asia. This insect is in the same family as the kissing bugs that transmit Chagas disease in the Americas. In India and Asia, T. rubrofasciata is currently known to carry other trypanosomes but is not confirmed as a vector for T. cruzi in local animal populations. However, its presence, its biting behaviour, and its association with domestic environments and pets makes it worth knowing about. Reports of painful bites and anaphylactic reactions from T. rubrofasciata in Vietnam and other Asian countries have been documented in scientific literature.

What are the early signs of Chagas disease in cats?
The early (acute) phase of Chagas disease in cats is often mild or completely silent. If signs appear, they typically include lethargy, reduced appetite, mild fever, and possibly a small swelling at the site where the bug's droppings entered the body. A swollen eye may be the first clue if droppings reached the conjunctiva. Because these signs are non-specific, Chagas disease is rarely caught in the acute phase unless the owner knows to suspect it for example, because the cat was in an endemic area or found a dead triatomine bug.

What happens to a cat's heart in chronic Chagas disease?
Chronic Chagas disease causes progressive damage to the heart muscle. The parasite lives and replicates inside cardiac muscle cells, killing them in the process. The immune system's response to the dying cells adds further inflammation. Over time, this results in cardiac enlargement (cardiomegaly), scarring of the heart muscle, abnormal electrical rhythms (arrhythmias), right-sided congestive heart failure, and in some cases, sudden cardiac death. By the time these signs appear, substantial irreversible damage has already occurred. This makes early detection  efore cardiac signs develop critically important.

Is Chagas disease curable in cats?
Antiparasitic treatment with benznidazole or nifurtimox can significantly reduce the parasite load in infected animals, especially when given during the acute phase. However, the cardiac damage caused during the chronic phase is not reversed by antiparasitic treatment. Damage to heart muscle that has already been replaced by scar tissue is permanent. In the chronic cardiac phase, treatment focuses on managing heart failure and arrhythmias supporting the heart's function as best as possible. There is no vaccine against Chagas disease.

Should I be worried about Chagas disease if I live in India?
For cat owners currently living in India with no travel history to Latin America, the direct risk of T. cruzi infection in your cat is very low there is no confirmed evidence of T. cruzi circulating in Indian animals or insects. However, Triatoma rubrofasciata is confirmed present in India, bites cats and other pets, and belongs to the same insect family that transmits Chagas disease elsewhere. The appropriate response is not alarm, but informed vigilance: keep your cat protected from biting insects with regular parasite prevention, and if you travel to the Americas with your cat or adopt a cat with a history in endemic regions, specifically discuss Chagas disease testing with your vet.

References

1. Nick Roman, DVM, MPH. Chagas Disease in Cats. Merck Veterinary Manual (Pet Owner Version). Modified March 2026. https://www.merckvetmanual.com/cat-owners/blood-disorders-of-cats/chagas-disease-in-cats
2. Silvina E. Wilkowsky, PhD. Trypanosomiasis in Animals (Chagas Disease section). Merck Veterinary Manual (Professional Version). Modified March 2026. https://www.merckvetmanual.com/circulatory-system/blood-parasites/trypanosomiasis-in-animals
3. World Health Organization. Chagas Disease (American Trypanosomiasis) — Fact Sheet. https://www.who.int/news-room/fact-sheets/detail/chagas-disease-(american-trypanosomiasis)
4. Pan American Health Organization. Chagas Disease. https://www.paho.org/en/topics/chagas-disease
5. Lent H, Valente SAV, Cortez MR, et al. The rising importance of Triatoma rubrofasciata. Memórias do Instituto Oswaldo Cruz. 2015. https://pmc.ncbi.nlm.nih.gov/articles/PMC4489469/
6. Reyes-Lugo M, et al. Biological attributes of the kissing bug Triatoma rubrofasciata from Vietnam. Parasites & Vectors. 2019. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6915989/