18 documents found, page 1 of 2
Molecular detection of Rickettsia spp. in ticks and feas collected from rescued...
Barradas, P. F.; Mesquita, J. R.; Mateus, T. L.; Ferreira, P.; Amorim, I.; Gartner, F.; Sousa, R.Hedgehogs (e.g., Erinaceus europaeus, E. roumanicus) are wild mammals that frequently are observed near residential areas. The aim of this study was to investigate ticks and feas collected from European hedgehogs in Portugal and to evaluate the prevalence of Rickettsia in those ectoparasites. Ticks and feas were identifed by morphological and molecular methods, and molecular detection by PCR and genotypic chara...
Crenosoma striatum in lungs of European hedgehogs (Erinaceus europeus) from Por...
Barradas, P. F.; Flores, A. R.; Mateus, T. L.; Carvalho, F.; Gärtner, F.; Amorim, I.; Mesquita, J. R.Crenosoma striatum is a host-specifi c metastrongiloid nematode causing respiratory tract disease in hedgehogs (Erinaceus europaeus). Since few studies have reported C. striatum in hedgehogs and little genetic data is available concerning this lungworm, this study aimed to determine the occurrence of C. striatum in a population sample of hedgehogs from Portugal, additionally providing morphological, histologica...
Feline lungworm infection. An emerging concern?
Vala, Helena; Esteves, F.; Santos, C.; Mega, A.C.; Coelho, C.; Nóbrega, C.; Cruz, C.; Mesquita, J. R.Infectious feline upper respiratory tract disease is very common and Aelurostrongylus abstrusus is the most often diagnosed parasitic cause, although clinical signs may go unnoticed and diagnosis is challenging as it has several limitations. Noting that more cases have been recorded in recent years, the authors, in the present work, describe in detail the features of five cases of Aelurostrongylus abstrusus reg...
Rubella antibodies in cord blood sera in Portugal: association with maternal ag...
Frade, J.; Nunes, C.; Mesquita, J. R.; Nascimento, M. São José; Gonçalves, G.This study evaluated the impact of maternal vaccination against rubella on the levels of specific rubella IgG (rIgG) in 198 newborn cord sera samples. Detailed maternal vaccination data were available. Specific rIgG was measured using a commercial enzyme immunoassay. Most mothers (78.8%) had been vaccinated against rubella at least once in their lives. In 15 (7.6%) cord sera samples, the concentration of specif...
Prevalence of hepatitis E virus antibodies in workers occupationally exposed to...
Teixeira, J.; Mesquita, J. R.; Pereira, S. S.; Oliveira, R. M. S.; Abreu-Silva, Joana; Rodrigues, A.; Myrmel, M.; Stene-Johansen, K.; Øverbø, J.The concept of zoonotic hepatitis E in industrialized countries has emerged with the discovery of swine strains of hepatitis E virus (HEV) genotype 3, closely related to human HEV. Different routes of zoonotic HEV transmission have been recognized, including contact with infected pigs. Workers occupationally exposed to swine (WOES) have been considered a risk group for HEV infection, but contradictory results h...
Prevalence of hepatitis E virus antibodies in workers occupationally exposed to...
Teixeira, J.; Mesquita, J. R.; Pereira, S. S.; Oliveira, R. M. S.; Abreu-Silva, J.; Rodrigues, A.; Myrmel, M.; Stene-Johansen, K.; Øverbø, J.The concept of zoonotic hepatitis E in industri alized countries has emerged with the discovery of swine strains of hepatitis E virus (HEV) genotype 3, closely related to human HEV. Different routes of zoonotic HEV transmission have been recognized, including contact with infected pigs. Workers occupationally exposed to swine (WOES) have been considered a risk group for HEV nfec tion, but contradictory results ...
Outbreak of Porcine Epidemic Diarrhea Virus in Portugal, 2015
Mesquita, J. R.; Hakze-van der Honing, R.; Almeida, A.; Lourenço, M.; van der Poel, W. H. M.; Nascimento, M. S. J.An outbreak of porcine epidemic diarrhea virus (PEDV) in the South of Portugal in January 2015 and the spread of PEDV northwards in the territory are described. Comparative analysis of the amplified sequences showed a very high (99.0%) identity with the PEDV variant most recently reported in the United States and also show complete (100%) identity to the strains recently reported in Germany, supporting the hypo...
Melanocytic Tumour in a Black Sheep never exposed to Ultraviolet Radiation
Vala, Helena; Pópulo, H.; Mesquita, J. R.; Esteves, F.; Santos, C.; Soares, P.; Lopes, J. M.A slow growing progressive head skin tumour in a 6-year-old “Serra da Estrela” (black variety) male sheep without previous history of ultraviolet radiation exposure or illness is described. The tumour consisted of a large (5.4cm) irregular mass subdivided into two polypoid-like regions and small alternating pigmented and non-pigmented areas in the surrounding thick epidermis. By light microscopy the tumour disc...
Breves considerações sobre a evolução, impacto e profilaxia do parvovírus canino
Costa, M.; Nóbrega, C.; Mega, A.; Esteves, F.; Cruz, R.; Santos, C.; Vala, Helena; Santos, M.; Mesquita, J. R.A família Parvoviridae está dividida em duas subfamílias. A subfamília Parvovirinae, que inclui os vírus que afectam vertebrados e a subfamília Densovirinae, que contém os vírus que afectam insectos (MacLachlan & Dubovi, 2011). Dentro da subfamília Parvovirinae foram definidos cinco géneros: Erytrovírus, Dependovírus, Parvovírus, Amdovírus e Bocavírus.
Feline Calicivirus: unveiling data on viral inactivation
Lemos, M.; Nóbrega, C.; Vala, Helena; Mesquita, J. R.Feline Calicivirus (FCV) is an important and widespread virus of the feline population. As a member of the Caliciviridae family, FCV mutates readily in nature, and this has resulted in the recent emergence of a highly virulent haemorrhagic systemic strain. Despite the increased concern about this feline pathogen, little is still known on potential FCV virucidal compounds. On the other hand several experiments o...