Survival analysis of Rhipicephalus microplus larvae treated with coumarinic derivatives.

Rhipicephalus (Boophilus) microplus represents one of the greatest challenges for livestock production in tropical and subtropical regions. Its control has been based on the use of synthetic chemical acaricides, which has led to the development of resistance to active ingredients belonging to the pyrethroid and organophosphate groups. Therefore, the search for new compounds with acaricidal potential is a priority in the control of ticks in cattle.

Comparative assessment of the replication efficiency of dengue, yellow fever, and chikungunya arboviruses in some insect and mammalian cell lines.

Introduction: Insect cell cultures play an essential role in understanding arboviral replication. However, the replicative efficiency of some of these viruses such as dengue (DENV), yellow fever (YFV), and chikungunya (CHIKV) in a new cellular substrate (Lulo) and in the other two recognized cell lines has not been comparatively assessed.

Methods: Vero, C6/36, and Lulo cell lines were infected with DENV, YFV, and CHIKV.