Bertiella mucronata in Black-and-Gold Howler Monkey (Alouatta caraya) in Minas Gerais State, Brazil.

This is the first reported case of Bertiella mucronata infection in a black-and-gold howler monkey (Alouatta caraya) in Brazil. The present study confirms the widespread of B. mucronata in South America and suggest that black-and-gold howler monkeys may serve as viable reservoirs for B.

Ehrlichia spp. infection worsens cardiac damage in dogs with canine visceral leishmaniasis.

In endemic areas for canine visceral leishmaniasis (CVL), the occurrence of coinfection with other pathogens, such as Ehrlichia spp., has been associated with worsening of the clinical condition. The study aimed to evaluate the occurrence of histological changes in the myocardia of dogs naturally infected with Leishmania chagasi with or without coinfection with Ehrlichia spp.

Refrigerated modified Knott concentrate enables long-term morphological viability of canine blood microfilariae.

There are several methods of laboratory diagnosis of filarids, the most used are the thick smear and the Knott method. Both are quick to perform, have a low cost and allow observing the presence, quantifying and analyzing the morphological characteristics of microfilariae. Knowing the morphological viability of fixed microfilariae is of practical importance, as it allows the transport of samples to a laboratory, facilitates epidemiological studies , and allows the storage of samples for didactic.