Assessment of biological hazards in a laboratory in Boa Vista, Roraima.

Introduction: Safety in health care should be a priority of all health professionals. The occurrence of occupational accidents is many times attributed to a failure in following established standards, and identifying and correcting the risks to which professionals are exposed is important.

Objectives: The aim of this study was to assess the level of understanding on the biological hazards to which workers of a clinical analysis laboratory are exposed.

First Whole-Genome Characterization of Avian Nephritis Virus 2 of Broiler Chicken from Pará, Brazil.

Our results show the first full-genome characterization of avian nephritis virus 2 recovered from stools of broiler chickens at a commercial farm located in Benevides, Pará, Brazil. Nucleotide analyses of whole-genome sequences showed the isolate to be a strain of in the family .

A Proposed New Strain of Avian Picornavirus in Broiler Chicken from Brazil.

A new strain of avian picornavirus was identified in fecal samples from broiler chickens in a commercial farm in the municipality of Benevides, Pará, Brazil. Genomic analysis showed it to have a nucleotide identity of 78.4% with the family , genus and species , suggesting that this is a possible new strain within this species.

Detection, epidemiology and characterization of VP6 and VP7 genes of group D rotavirus in broiler chickens.

Rotaviruses infect humans and animals and are classified into eight groups (A to H). Group D rotavirus (RVD) has been described in birds, although relatively few reports are available. The present study focused on RVD, including epidemiological and molecular aspects of samples collected from broiler chickens in the state of Pará, Brazil.

Genogroup I avian picobirnavirus detected in Brazilian broiler chickens: a molecular epidemiology study.

Picobirnavirus (PBV) belongs to the family Picobirnaviridae. Picobirnaviruses contain a bisegmented dsRNA genome that is non-enveloped. A total of 85 pooled faecal samples were collected from the poultry of 37 farms from the Metropolitan Mesoregion of Belém (MMB), Pará state, Brazil.

Detection of avian group D rotavirus using the polymerase chain reaction for the VP6 gene.

Group D rotaviruses (RVs-D) have been documented in birds and, while they may be common in these animals, few molecular studies are available for this specific group. In this study, specific primers for the gene that encodes for the RVs-D VP6 protein were designed and used in a reverse transcription polymerase chain reaction (RT-PCR). Thirty pools of samples were tested by polyacrylamide gel electrophoresis (PAGE) yielding a 30% (9/30) positivity.