| emergence of a potentially pathogenic h5n2 influenza virus in chickens. | highly pathogenic influenza a viruses periodically infect both humans and nonhuman animals, including chickens. to gain insight into the origin of influenza outbreaks in poultry, we investigated two h5n2 viruses, a/chicken/pennsylvania/13609/93 (ck/pa/93) and a/chicken/florida/25717/93 (ck/fla/93), that had been isolated in live-bird markets in pennsylvania and florida during surveillance studies in 1993. phylogenetic analysis of the ha genes of these isolates, as well as h5n2 viruses isolated f ... | 1994 | 8184538 |
| first records of chewing lice (phthiraptera: menoponidae) in pacific migratory shorebirds wintering in ecuador. | chewing lice were collected from small shorebirds (charadriformes: scolopacidae) overwintering in foraging grounds of coastal ecuador. on 27 occasions at least one louse (3.7%) was collected from six host species. based on external morphological characters, at least two species of chewing lice could be preliminary identified (family: menoponidae), including actornithophilus umbrinus (burmeister, 1842) and austromenopon sp. a. umbrinus was found in the western sandpiper (calidris mauri), least sa ... | 2014 | 25054510 |