Prevention Chagas disease

awareness , prevention campaign poster in cayenne, french guiana, 2008

there no vaccine against chagas disease. prevention focused on decreasing numbers of insect spreads (triatoma) , decreasing contact humans. done using sprays , paints containing insecticides (synthetic pyrethroids), , improving housing , sanitary conditions in rural areas. urban dwellers, spending vacations , camping out in wilderness or sleeping @ hostels or mud houses in endemic areas can dangerous; mosquito net recommended. measures of vector control include:

a yeast trap can used monitoring infestations of species of triatomine bugs (triatoma sordida, triatoma brasiliensis, triatoma pseudomaculata, , panstrongylus megistus).
promising results gained treatment of vector habitats fungus beauveria bassiana.
targeting symbionts of triatominae through paratransgenesis can done.

a number of potential vaccines being tested. vaccination trypanosoma rangeli has produced positive results in animal models. more recently, potential of dna vaccines immunotherapy of acute , chronic chagas disease being tested several research groups.

blood transfusion formerly second-most common mode of transmission chagas disease, development , implementation of blood bank screening tests has dramatically reduced risk in 21st century. blood donations in endemic latin american countries undergo chagas screening, , testing expanding in countries, such france, spain , united states, have significant or growing populations of immigrants endemic areas. in spain, donors evaluated questionnaire identify individuals @ risk of chagas exposure screening tests.

the fda has approved 2 chagas tests, including 1 approved in april 2010, , has published guidelines recommend testing of donated blood , tissue products. while these tests not required in us, estimated 75–90% of blood supply tested chagas, including units collected american red cross, accounts 40% of u.s. blood supply. chagas biovigilance network reports current incidents of chagas-positive blood products in united states, reported labs using screening test approved fda in 2007.