Characterization of avian metapneumoviruses isolated in the USA.

Agriculture & Biology

• Avian metapneumovirus 100%
• flocks 29%
• Branta canadensis 23%
• viruses 20%
• birds 19%
• waterfowl 19%
• biosecurity 19%
• diagnostic techniques 17%
• respiratory tract diseases 17%
• disease control 14%
• vaccines 13%
• researchers 13%
• enzyme-linked immunosorbent assay 13%
• reverse transcriptase polymerase chain reaction 12%
• taxonomy 11%
• amino acid sequences 11%
• nucleotides 11%
• farms 10%
• industry 10%
• pathogens 9%
• phylogeny 9%