Whooping Cough Outbreaks About Whooping Cough Outbreaks Key points Pertussis 백일해 발병에 대하여
About Whooping Cough Outbreaks About Whooping Cough Outbreaks Key points Pertussis (whooping cough) is common in the United States, with frequent outbreaks. Protecting people at highest risk of serious illness is the primary focus during outbreaks. Health departments take the … Continued