Kissing bugs, a blood-feeding insect, have made their way into Southern California, raising concerns about the spread of Chagas disease, a parasitic infection that can cause chronic health problems and even death, according to the World Health Organization (WHO).
These bugs are now found in wooded areas like Griffith Park and are known to bite the face, particularly around the mouth and eyes—earning them their nickname. Apart from California, kissing bugs have been detected in 32 other states, including Texas, New Mexico, and Arizona. They feed on humans, pets, and wild animals, transmitting the parasite mainly through bites, as noted by Texas A&M’s Kissing Bugs program.
Scientists have called on the CDC and WHO to declare Chagas disease endemic in the US, after at least eight Americans caught the infection locally.
What is Chagas Disease?
Chagas disease, also called American trypanosomiasis, is caused by a protozoan parasite. While the infection may be mild initially, missed or delayed treatment can turn it into a life-threatening condition, warns the WHO.
Symptoms of Chagas Disease
Chagas disease manifests in two phases:
Initial Phase (First 2 Months)
- Fever, headache, and enlarged lymph nodes
- Muscle pain, difficulty breathing, abdominal or chest pain
- Pallor and rare skin lesions or purplish swelling of the eyelid
Chronic Phase (Years Later)
- Parasites hide in the heart and digestive muscles
- Up to one-third of patients develop cardiac disorders
- Around 1 in 10 suffer digestive, neurological, or mixed problems
- Can lead to cardiac arrhythmias, progressive heart failure, and sudden death
How to Treat Chagas Disease
Chagas disease can be treated with benznidazole or nifurtimox, which are most effective when administered early.
WHO notes that treatment efficacy decreases the longer a person is infected, and these medications should not be given to pregnant women or patients with kidney, liver, or neurological conditions.
Even asymptomatic adults can benefit from early treatment to curb disease progression.
Prevention and Awareness
While the parasite has been found in local wildlife such as rats and skunks, it is transmitted mainly through kissing bug bites. Experts emphasize that awareness and vigilance are the best protection. Insect repellents are not recommended for the face, according to ABC7 Eyewitness News.
Being informed about kissing bugs, symptoms of Chagas disease, and preventive measures is key to reducing risk.
