| Full text | |
| Author(s): |
Kirchgatter, Karin
[1]
;
Tubaki, Rosa Maria
[2]
;
Malafronte, Rosely dos Santos
[3, 4]
;
Alves, Isabel Cristina
[5]
;
Maciel de Castro Lima, Giselle Fernandes
[1]
;
Guimaraes, Lilian de Oliveira
[1]
;
Zampaulo, Robson de Almeida
[2]
;
Wunderlich, Gerhard
[6]
Total Authors: 8
|
| Affiliation: | [1] Univ Sao Paulo, Inst Med Trop Sao Paulo, Nucleo Estudos Malaria, BR-05403000 Sao Paulo - Brazil
[2] Lab Entomol Med, Sao Paulo - Brazil
[3] Univ Sao Paulo, Inst Med Trop Sao Paulo, Lab Protozool, BR-05403000 Sao Paulo - Brazil
[4] Univ Sao Paulo, Fac Med, Dept Doencas Parasitarias & Infecciosas, Sao Paulo - Brazil
[5] Hosp Clin Sao Paulo, Lab Invest Med, Sao Paulo - Brazil
[6] Univ Sao Paulo, Inst Ciencias Biomed 2, Dept Parasitol, Sao Paulo - Brazil
Total Affiliations: 6
|
| Document type: | Journal article |
| Source: | Revista do Instituto de Medicina Tropical de São Paulo; v. 56, n. 5, p. 403-409, SEP-OCT 2014. |
| Web of Science Citations: | 8 |
| Abstract | |
Anopheles (Kerteszia) cruzii has been implicated as the primary vector of human and simian malarias out of the Brazilian Amazon and specifically in the Atlantic Forest regions. The presence of asymptomatic human cases, parasite-positive wild monkeys and the similarity between the parasites infecting them support the discussion whether these infections can be considered as a zoonosis. Although many aspects of the biology of An. cruzii have already been addressed, studies conducted during outbreaks of malaria transmission, aiming at the analysis of blood feeding and infectivity, are missing in the Atlantic Forest. This study was conducted in the location of Palestina, Juquitiba, where annually the majority of autochthonous human cases are notified in the Atlantic Forest of the state of São Paulo. Peridomiciliary sites were selected for collection of mosquitoes in a perimeter of up to 100 m around the residences of human malaria cases. The mosquitoes were analyzed with the purpose of molecular identification of blood-meal sources and to examine the prevalence of Plasmodium. A total of 13,441 females of An. (Ker.) cruzii were collected. The minimum infection rate was calculated at 0.03% and 0.01%, respectively, for P. vivax and P. malariae and only human blood was detected in the blood-fed mosquitoes analyzed. This data reinforce the hypothesis that asymptomatic human carriers are the main source of anopheline infection in the peridomiciliary area, making the probability of zoonotic transmission less likely to happen. (AU) | |