Pregnant women should get the whooping cough vaccine so the effects can be passed to their babies, Hong Kong’s health authorities have said, after a large increase in the number of infected infants in the city.
Last year, 110 people contracted the disease, the highest level since at least 1997 when public records were available. There were 69 cases in 2017, up from 31 in 2016.
Among them, about 44 were infants six months old or below. Eighteen of them were two months old.
“Last year...
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