The number of cases was 23 times higher than the same period last year! Is this disease making a comeback?. Newborns and infants under 3 months old are high-risk groups.

When spasmodic coughs and rooster-like inhalation roars occur, if treatment is not timely, it may lead to suffocation or even death. This epidemic was seriously underestimated in the past, and may also be related to the entry of whooping cough into the active surveillance period.