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Porcine parvovirus (PPV) is a DNA virus of the genus Parvovirus of family Parvoviridae. It is the causative agent of many disease problems in pigs such as maternal reproductive failure, stillbirth, mummification, embryonic or fetal death, infertility, abortion and neonatal death. A study was conducted to assess the incidence of the virus in pigs in Kerala State in South India. A total of 38 samples...
We sequenced the E gene and adjacent prM/M and NS1 junctions (1940 bp) of 48 Dengue-4 (DEN-4) isolates collected between 1981 and 1999 from 8 Caribbean islands and from 7 South and Central American countries. Phylogenetic analysis confirms a single introduction in the early 1980s and a high degree of gene flow resulting in a pattern of evolution defined more by time period than geographic origin,...
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