COVID-19 caused an alarming surge in premature births, but vaccines halted this trend and were key to returning the early birth rate to pre-pandemic levels, according to a new study. In zip codes with the highest vaccination rates, the excess risk of preterm birth declined much faster.

COVID-19 caused an alarming surge in premature births, but vaccines halted this trend and were key to returning the early birth rate to pre-pandemic levels, according to a new study. In zip codes with the highest vaccination rates, the excess risk of preterm birth declined much faster.