After the rapid spread of SARS-CoV-2 BA.5 Omicron lineage in Portugal, we developed a seroepidemiologic survey based on a sample of 3,825 residents. Results indicated that from April 27 through June 8, 2022, the estimated seroprevalence of SARS-CoV-2 nucleocapsid or spike IgG was 95.8%, which indicates a high level of protection.
Introduction: Following a COVID-19 mass vaccination campaign, it is important to evaluate the population level of SARS-CoV-2 antibodies. The aim of this study was to estimate the seroprevalence rate of SARS-CoV-2 specific antibodies acquired due to infection or vaccination in the Portuguese population.Material and Methods: The National Serological Survey (third wave – ISN3COVID-19) is a cross-sectional nationwi...
Introduction: Following a COVID-19 mass vaccination campaign, it is important to evaluate the population level of SARS-CoV-2 antibodies. The aim of this study was to estimate the seroprevalence rate of SARS-CoV-2 specific antibodies acquired due to infection or vaccination in the Portuguese population. Material and methods: The National Serological Survey (third wave - ISN3COVID-19) is a cross-sectional nationw...
The objective of this seroepidemiological survey was to estimate seroprevalence of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) specific antibodies (IgM and/or IgG) in Portugal in May-July 2020. The seroprevalence of SARS-Cov-2 infection (positive for IgM and/or IgG) was 2.9% (CI95: 2.0 - 4.2%). Our results support extend limited extent of infection by SARS-CoV-2 in Portugal due to early lockdow...
Introdução: Clamydophila psittaci (Cps) é habitualmente transmitida de aves infetadas para humanos. Em humanos, a infeção por Cps varia de clinicamente inaparente a pneumonia grave (psitacose). A inalação de aerossóis de fezes, poeira fecal ou secreções nasais de animais infetados com Cps é a principal via de transmissão. A infeção por Clamydophila pneumoniae (Cpn) pode ter várias apresentações clínicas, como f...
Introduction: Leptospirosis is a zoonotic disease caused by spirochete bacteria of the genus Leptospira. There are 10 pathogenic species, and more than 250 pathogenic serovars. Humans and animals are infected with Leptospira through direct contact with the urine of an infected animal or indirectly by environmental contamination such as soil and water. Transmission occurs through mucous membranes, conjunctiva an...