Fig. 5From: Epidemic of wild-origin H1NX avian influenza viruses in Anhui, ChinaChange in body weight and mortality in BALB/c mice inoculated with H1 viruses. a Body weights and survival rates of mice were observed over 14 days after infection. b Lungs and tracheas were collected at 3 days post infection (p.i.); the virus replication levels were measured by EID50 in specific-pathogen-free (SPF) eggsBack to article page