The bug that I found in my bucket is no great cause for alarm but it is a reminder that we have to be vigilant and particularly at this time of the year. The Vinchuca is attracted to light on warm humid nights where it knows there are humans to feed on. It is a blood sucking insect and it gets into houses through cracks and holes in window screens and hides in wall crevices, behind picture frames, and in beds. At night it comes out and bites its victim and sucks up a blood meal. It does not spread the disease this way, however. While it is sucking blood it constantly defecates and the T.cruzi organism which causes Chagas is contained in the feces of the bug. This feces then infects the wound made by the bug when the victim scratches the itch made by the wound which is like a mosquito bite. Where there is no human blood available the Vinchuca feeds on the blood of small mammals like tuzos (gophers), ardillas (squirrels), ratas (rats), ratones (mice), mapaches (raccoons), and especially tlacuaches (opossums, also called zarigüeyas).
What should you do to avoid catching this Chagas disease? First of all, tighten up your house. Make sure that there are no places where the insect can enter your home at night especially areas where there are bright lights (external or internal) close to doors and windows. If you should happen to see one of these bugs in your house, especially the bedroom, make a thorough search of your mattresses and bedclothes and also cracks, crevices, or other potential hiding places near your bed. In general if you keep your house neat and tidy there should be no problem. The greatest problem is for people who live in adobe houses or poorly constructed shacks that have no window or door screens. If one of your eyes should swell up for no apparent reason see a doctor immediately and be tested for Chagas. If detected right away, the disease can be treated, but if left to spread throughout the body there is little that can be done at this time. Be careful. It's a jungle out there.
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