The two Covid-19 vaccines approved for use in the United States have reassuring safety profiles with no concerning new issues found in data collected from the first month of vaccinations, the US Centers for Disease Control and Prevention (CDC) said on Friday.

After administration of 13.8 million doses of the Pfizer/ BioNTech and Moderna Inc vaccines to the US population, most reports indicated non-serious side effects of the type that had been expected, such as headaches and fatigue. No deaths have been attributed to the vaccines, the data showed...