Percorrer por autor "Fonseca, I.P."
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- Guidelines for the Detection of Rickettsia spp.Publication . Portillo, A.; de Sousa, R.; Santibánez, S.; Duarte, A.; Edouard, S.; Fonseca, I.P.; Marques, C.; Novakova, M.; Palomar, A.M.; Santos, M.; Silaghi, C.; Tomassone, L.; Zúquete, S.; Oteo, J.A.The genus Rickettsia (Rickettsiales: Rickettsiaceae) includes Gram-negative, small, obligate intracellular, nonmotile, pleomorphic coccobacilli bacteria transmitted by arthropods. Some of them cause human and probably also animal disease (life threatening in some patients). In these guidelines, we give clinical practice advices (microscopy, serology, molecular tools, and culture) for the microbiological study of these microorganisms in clinical samples. Since in our environment rickettsioses are mainly transmitted by ticks, practical information for the identification of these arthropods and for the study of Rickettsia infections in ticks has also been added.
- The histopathological timeframe of Hyalomma lusitanicum infestation development on bovinesPublication . Zúquete, S.T.; Carvalho, S.; Santos-Silva, M.M.; Santos, A.S.; Fonseca, I.P.; Correia, J.; Cardoso, L.A.Ticks are competent vectors of both animal and human pathogens. Hard ticks secure their meals by attaching to a host for several days. Even though some animals are capable of acquiring some resistance to ticks after several infestations, tick attachment to naïve cattle often result in skin lesions because host inflammatory reaction is not enough to induce efficient responses capable of leading to ticks skins detachment. In order to characterize the recruitment of local inflammatory responses, two Holstein-Frisea females were infested with laboratory reared Hyalomma lusitanicum adult ticks.