Agriculture & Biology
pandemic
100%
Orthomyxoviridae
91%
herds
64%
swine
50%
infection
40%
pig breeding
18%
gilts
15%
sows
13%
health programs
10%
sampling
10%
viruses
9%
monitoring
8%
breeding
8%
biosecurity
8%
cross-sectional studies
8%
Influenza A virus
7%
respiratory tract diseases
7%
animal health
7%
mouth
5%
fluids
5%
blood
4%
genome
3%
animals
2%
genes
2%
Medicine & Life Sciences
H1N1 Subtype Influenza A Virus
98%
Pandemics
82%
Orthomyxoviridae
78%
Swine
61%
Infections
37%
Breeding
27%
Nose
9%
Viruses
7%
Polymerase Chain Reaction
7%
Influenza A virus
6%
Animals
5%
Population
4%
Maintenance
4%
Genome
4%
Cross-Sectional Studies
3%
Health
2%
Genes
2%