Unusual transformation of Leishmania spp. amastigotes to promastigotes in a bone marrow sample from a Greyhound dog.

The objective of the study was to confirm the presence of different morphological forms of Leishmania infantum promastigotes on bone marrow aspirates from a Spanish Greyhound with canine leishmaniosis.

Differential interactions of virulent and non-virulent H. parasuis strains with naïve or swine influenza virus pre-infected dendritic cells.

Pigs possess a microbiota in the upper respiratory tract that includes Haemophilus parasuis. Pigs are also considered the reservoir of influenza viruses and infection with this virus commonly results in increased impact of bacterial infections, including those by H. parasuis.

Interaction of porcine conventional dendritic cells with swine influenza virus.

Swine influenza virus (SwIV) causes sub-acute or acute respiratory infections on swine farms and pigs can act as "mixing vessels" for new influenza strains. Knowledge of the immune response of SwIV in its natural host, pigs, is very limited. Dendritic cells (DCs) mediate the induction of immunity to pathogens, but their interaction with SwIV has not been fully characterized.

Disruption of nuclear organization during the initial phase of African swine fever virus infection.

African swine fever virus (ASFV), the causative agent of one of the most devastating swine diseases, has been considered exclusively cytoplasmic, even though some authors have shown evidence of an early stage of nuclear replication. In the present study, an increment of lamin A/C phosphorylation was observed in ASFV-infected cells as early as 4 h postinfection, followed by the disassembling of the lamina network close to the sites where the viral genome starts its replication. At later time points, this and other nuclear envelope markers were found in the cytoplasm of the infected cells.