Behavioral Action of Deltamethrin and Cypermethrin in Pyrethroid-Resistant Aedes aegypti (Diptera: Culicidae): Implications for Control Strategies in Thailand.

Contact irritant (locomotor excitation) and noncontact spatial repellent avoidance behavior to deltamethrin and cypermethrin at dosages 0.025, 0.05, and 0.

Salivary Biomarker as a Proxy for Estimating Malaria Exposure on the Thailand-Myanmar Border.

Timely identification and treatment of malaria transmission "hot spots" is essential to achieve malaria elimination. Here we investigate the relevance of using an salivary biomarker to estimate malaria exposure risk along the Thailand-Myanmar border to guide malaria control. Between May 2013 and December 2014, > 9,000 blood samples collected in a cluster randomized control trial were screened with serological assays to measure the antibody responses to salivary antigen (gSG6-P1) and malaria antigens (circumsporozoite protein, merozoite surface protein 119 [MSP-1]).

Use of an Anopheles Salivary Biomarker to Assess Malaria Transmission Risk Along the Thailand-Myanmar Border.

Background: The modalities of malaria transmission along the Thailand-Myanmar border are poorly understood. Here we address the relevance of using a specific Anopheles salivary biomarker to measure the risk among humans of exposure to Anopheles bites.

Methods: Serologic surveys were conducted from May 2013 to December 2014 in 4 sentinel villages.

Climate associated size and shape changes in Aedes aegypti (Diptera: Culicidae) populations from Thailand.

In spite of the adult body size variability of Aedes aegypti (Linnaeus) and its likely association with life history and vectorial capacity, the causes of size variation itself have been only partially identified. In particular, possible important factors such as climatic variation have not received much attention. The objective of this 2-year study was to describe from field collections the relationship of Ae.

Biochemical detection of pyrethroid resistance mechanism in Aedes aegypti in Ratchaburi province, Thailand.

The emergence of insecticide resistance in mosquito vectors was an important issue to be considered as one of factors influencing the success of vector control. The early detection of resistance could help the health personnel to plan and select appropriate alternative control measures or insecticide for effective control. Therefore biochemical assay of enzymes in mosquito was conducted to detect the emergence of insecticide resistance and to define the machanisms involved in pyrethroid resistance.

Insecticide susceptibility and selection for resistance in a population of Aedes aegypti from Ratchaburi province, Thailand.

The insecticide susceptibility of Aedes aegypti larvae and adults from four areas of Ratchaburi Province, Thailand was investigated using World Health Organization standard procedures. The larvae of Ae. aegypti in all areas were found to be susceptible to temephos.