8 documents found, page 1 of 1
Evidence for sporadic Coxiella burnetii excretion in sheep milk, central Portugal
Pires, Humberto; Silva, S. Santos; Cruz, A.; Cardoso, Luís; Lopes, A.P.; Pereira, M.A.; Nóbrega, C.; Mega, A.C.; Santos, C.; Cruz, R.; Esteves, F.Coxiella burnetii, the causative agent of Q fever, is a globally distributed zoonosis, with cattle, sheep, and goats considered the main reservoirs of the disease (Agger et al,., 2013; Bento et al., 2023). Human transmission primarily occurs through inhaling infections aerosols from milk, faeces, urina, and birth products from infected ruminants. This study used a 2-year longitudinal approach to investigate C. ...
Pathogenic Rickettsia in ticks of spur-thighed tortoise (Testudo Graeca) sold i...
Barradas, P.F.; Mesquita, J.R.; Lima, C.; Cardoso, L.; Alho, A.M.; Ferreira, P.; Amorim, I.; De Sousa, R.; Gärtner, F.The dissemination of vector arthropods harbouring zoonotic pathogens through the uncontrolled transboundary trade of exotic and pet animals poses an important threat to Public Health. In the present report, we describe the introduction of pathogenic Rickettsia africae and R. aeschlimanni in ticks removed from imported tortoises in Qatar. A total of 21 ticks were collected from pet spur‐thighed tortoises (Testud...
Simultaneous norovirus outbreak in three Portuguese army bases in the Lisbon re...
Lopes-João, A.; Mesquita, J.R.; de Sousa, R.; Oleastro, M.; Penha-Gonçalves, C.; Nascimento, M.S.J.Introduction Norovirus outbreaks frequently occur in communities and institutional settings acquiring a particular significance in armed forces where prompt reporting is critical. Here we describe the epidemiological, clinical and laboratorial investigation of a multicentre gastroenteritis outbreak that was detected simultaneously in three Portuguese army units with a common food supplier, Lisbon region, betwee...
Serological and molecular evidence of Bartonella henselae in cats from Luanda c...
Barradas, P.F.; De Sousa, R.; Vilhena, H.; Oliveira, A.C.; Luz, M.F.; Granada, S.; Cardoso, L.; Lopes, A.P.; Gonçalves, H.; Mesquita, J.R.; Ferreira, P.A total of 100 domestic cats from Luanda (Angola) were tested for the presence of antibodies against Bartonella henselae and spotted fever group of Rickettsia (SFGR) using indirect immunofluorescence assay (IFA). Molecular screening targeting the riboflavin synthase (ribC) gene for Bartonella and outer membrane protein B (ompB) gene for Rickettsia, using conventional PCR and sequencing was also performed in cat...
Country-wide surveillance of norovirus outbreaks in the Portuguese Army, 2015-2017
Lopes-João, A.; Mesquita, J.R.; de Sousa, R.; Oleastro, M.; Silva, C.; Penha-Gonçalves, C.; Nascimento, M.S.J.INTRODUCTION: Gastrointestinal infections are among the most common foodborne and waterborne diseases in military populations, with direct implications in operational efficiency and force readiness. Through the surveillance system of reportable acute gastrointestinal illness in the Portuguese Army, four norovirus outbreaks were identified between October 2015 and October 2017 in mainland Portugal and the Azores...
Multiple enteropathogenic viruses in a gastroenteritis outbreak in a military e...
Lopes-João, A.; Costa, Inês; Mesquita, J.R.; Oleastro, Mónica; Penha-Gonçalves, C.; Nascimento, M.S.Background: Gastroenteritis is one of the most common infectious diseases in the military populations and can diminish operational effectiveness and impede force readiness. Objectives: The present study investigates the cause and the source of an acute gastroenteritis outbreak that occurred during a military exercise of the Portuguese Army, in February 2013. Study Design: A retrospective investigation was perfo...
Surveillance of norovirus in Portugal and the emergence of the Sydney variant, ...
Costa, Inês; Mesquita, J.R.; Veiga, E.; Oleastro, Mónica; Nascimento, M.J.This report presents the results of the national surveillance system of diarrhea etiology of the National Institute of Health of Portugal concerning norovirus (NoV) during a two-year period, May 2011-2013. Of the total 580 stool samples collected from patients hospitalized for acute diarrhea in 13 Hospitals of Portugal, 67 (11.6%) tested positive for NoV. From May 2011 to March 2012 the GII.4 variant New Orlean...
First report of a norovirus outbreak associated with the variant Sydney 2012 in...
Mesquita, J.R.; Costa, I.; Oleastro, M.; Conceição-Neto, N.; Nascimento, M.S.Introduction: This study describes the investigation of a gastroenteritis outbreak in a group of students, associated with a dinner reunion in February 2013 in Porto, Portugal. Methodology: An anonymous structured questionnaire was developed and sent to 34 students who attended the dinner reunion. Eighteen students completed the questionnaire and thirteen met the case definition (attack rate of 72%). Stools fro...