Detection of Leishmania DNA in phlebotomines captured in Campo Grande, Mato Grosso do Sul, Brazil.

Over the past years, leishmaniases have become a public health issue in the Brazilian state of Mato Grosso do Sul, particularly in Campo Grande, the state capital. The purpose of this study was to detect the presence of Leishmania DNA in the population of phlebotomine sandflies using DNA amplification by PCR. Insect captures were carried out from 4 pm. to 7 am for 4 consecutive days each month from October 2005 to September 2006 in 16 neighborhoods located in 7 urban regions of Campo Grande. Traps were placed indoors and in the vicinity of households. As many as 971 males and 203 females were collected. One hundred and five naturally fed females were identified and grouped as 1- to 4-specimen pools. DNA extraction was carried out using whole insects. Lutzomyia longipalpis predominated, accounting for 99.15% of the phlebotomines captured. Also found was Nyssomyia whitmani, the vector of tegumentary leishmaniasis. Abundance was greatest in the vicinity of households (69.8% of the phlebotomines captured). As revealed by PCR, parasites were present in 1.9% of the Leishmania spp. specimens investigated and confirmed for visceral leishmaniasis.

An epidemiological description of human-hazardous incidents caused by nonhematophagous bats in Brazil, 2002-2003.

The interaction of bats with humans and pets increases the risk for rabies transmission. The purpose of the present study was to describe and analyze the epidemiological picture of injuries and related incidents caused by bats, to characterize the profile of these incidents, and to define recommendations for improving the health care delivered to patients. Fifty-three records of human anti-rabies treatment of injuries or related incidents caused by bats in Campo Grande, MS, Brazil, in 2002 and 2003 were investigated. The frequency of fields with missing or incorrect information was very high in the record forms surveyed. The frequency of incidents was higher for male patients. Most patients were in the 20-29 years age range. Bites and indirect contacts accounted for 49 and 22%, respectively, of the types of exposure. The time lag between the incidents and the presentation of patients for anti-rabies assessment ranged from 0 to 3 days in most cases. As many as 49% of the patients did not complete the treatment prescribed. The results revealed the need for improving the current human rabies control program in order to reduce noncompliance rates and to decrease the occurrence of flaws in patients' records and in the provision of health care.