P034. Molecular identification of mosquito blood meal sources in a former malaria-endemic region of Northern Mexico

Abstract

Understanding mosquito feeding behavior is crucial for assessing vector-host interactions and potential disease transmission risks. This study investigates the blood meal sources of mosquitoes collected in Batopilas, Chihuahua, a former malaria-endemic region in northern Mexico. During the rainy season (July–September) of 2024, mosquitoes were sampled from three communities—Misión de Satevó, Arenal de Satevó, and San José de Valenzuela—using standard collection methods, both indoors (houses) and outdoors (natural refuges). Blood meal analysis is being conducted through molecular techniques to identify vertebrate hosts. In total, 115 blood-fed females were collected and are currently being processed to determine host preference and calculate the Human Blood Index (HBI). Preliminary insights suggest diverse feeding behavior among local mosquito populations. Results will be available and presented during the congress. This study contributes to understanding mosquito ecology in historically malaria-affected regions and supports the development of targeted vector surveillance strategies.