3 documents found, page 1 of 1
Using Genomics to Understand the Origin and Dispersion of Multidrug and Extensi...
Perdigão, J; Gomes, P; Miranda, A; Maltez, F; Machado, D; Silva, C; Phelan, J; Brum, L; Campino, S; Couto, I; Viveiros, M; Clark, T; Portugal, IPortugal is a low incidence country for tuberculosis (TB) disease. Now figuring among TB low incidence countries, it has since the 1990s reported multidrug resistant and extensively drug resistant (XDR) TB cases, driven predominantly by two strain-types: Lisboa3 and Q1. This study describes the largest characterization of the evolutionary trajectory of M/XDR-TB strains in Portugal, spanning a time-period of two...
Improving Influenza Surveillance in Portuguese Preschool Children by Parents' R...
Paixão, P; Piedade, C; Papoila, AL; Caires, I; Pedro, C; Santos, M; Silvestre, MJ; Brum, L; Nunes, B; Guiomar, R; Curran, M; Carvalho, A; Marques, TInfluenza surveillance is usually based on nationally organized sentinel networks of physicians and on hospital reports. This study aimed to test a different report system, based on parents' phone contact to the research team and in home collection of samples by a dedicated team. The identification of influenza and other respiratory viruses in children who attended a Hospital Emergency Department was also recor...
pncA mutations in pyrazinamide-resistant Mycobacterium tuberculosis isolates in...
Portugal, I; Barreiro, L; Moniz-Pereira, J; Brum, LThe nucleotide sequences of the pncA genes within 55 multidrug-resistant pyrazinamide-resistant Mycobacterium tuberculosis clinical isolates were determined. Fifty-three out of the 55 isolates were pyrazinamidase (PZase) negative. Four strains contained a