H7N9 bird flu cases spike in China ahead of Lunar New Year . The virus has killed more than 100 people and infected thousands since it was first identified last year. According to his family , the man , who worked in Guangdong province in southern China , had always been healthy . Expert urges tougher bio-security measures in China 's live poultry markets . H7N9 has pneumonia-like symptoms , family of patients tell CNN .
H7N9 bird flu cases spike in China ahead of Lunar New Year . The virus has killed more than 100 people and infected thousands since it was first identified last year. Expert urges tougher bio-security measures in China 's live poultry markets . H7N9 has pneumonia-like symptoms , family of patients tell CNN .