
Natural infection plus COVID-19 vaccination in pregnant mothers conferred more durable antibody responses in infants than natural infection alone.

Natural infection plus COVID-19 vaccination in pregnant mothers conferred more durable antibody responses in infants than natural infection alone.

Those with certain comorbidities, including peptic ulcer disease and renal failure, were at additional risk of developing Clostridioides difficile infection.

Several trial participants experienced concerning hepatobiliary events.