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At least 163 records · Page 9Linked to original sources
PubMed1998

[The nutritional-viral etiology of epidemic neuropathy. The Group for the Study of Epidemic Neuropathy].

Viral sequences of the cerebrospinal fluid were amplified by using oligonucleotides that are homologous to region 5' of the Enteroviruses. The results showed a great variability in the amplified sequences, suggesting the presence of enteroviral quasispecies with altered biological properties in the stressed individuals that may play an important role in the neurological damage.

Animals↗
PubMed1999

Toward the incrimination of epidemic vectors of eastern equine encephalomyelitis virus in Massachusetts: abundance of mosquito populations at epidemic foci.

Putative epidemic/epizootic eastern equine encephalomyelitis virus (EEE) vector populations were compared at 15 recent (1982-90) human and horse case sites in Bristol and Plymouth counties in southeastern Massachusetts. Carbon dioxide-baited American Biophysics Corporation light traps were used for trapping adult mosquitoes to estimate biting risk in these foci of known transmission. Population data suggest that Coquillettidia perturbans, Aedes canadensis, and Culex salinarius are more likely vectors of EEE in Massachusetts than Aedes vexans, Anopheles punctipennis, and Anopheles quadrimaculatus.

Animals↗
PubMedDate not supplied

[Host parasite relationship among 3 Schistosoma mansoni and 6 Biomphalaria glabrata strains from epidemic and no epidemic Venezuelan areas is studied].

Six lots of 18 B. glabrata from: La Victoria, Turmero, Cagua in Aragua state; Caserío El 25 in Carabobo state, Chabasquén in Portuguesa state and Humocaro Bajo in Lara state, were experimentally infected with miracidia of SM, C5 and C6 strains of Schistosoma mansoni (18 snails/Schistosoma mansoni strain). The averages of the intramolluscal period (IMP) obtained for the S. mansoni strains were very similar and comprised between 35.4 and 36.1 days. No significative statistical differences in the IMP were found according to the S. mansoni strain and the size of snails: < 7 mm and > 7 mm. However, significative statistical differences in the IMP were found, in relation to the B. glabrata strain and between the snails classified in two groups according to the S. mansoni dose (5 miracidia/snail and 10 miracidia/snail). The higher percentages of infection (PI) were found for the following parasite-snail combinations: C6-Cas. El 25 (80.7%), SM-La Victoria (73.1%) and C5-Cagua (62%). No significative statistical differences were found for the PI a) between the snail classified in two groups according to the size (< 7 mm and > 7 mm), b) in relation to the miracidium dosification (5 and 10 miracidia/snail and c) in accord to the S. mansoni strain. However, significative statistical differences were found for the PI obtained with different strains of the snail.

Analysis of Variance↗