Moderna files for emergency use of second Covid-19 booster shot – The Guardian

Moderna late on Thursday sought emergency use authorization from US health regulators for a second Covid-19 booster shot, as a surge in cases in some parts of the world fueled fears of another wave of the pandemic.

The US biotechnology company said its request covered all adults over the age of 18 so that the appropriate use of an additional booster dose of its vaccine, including for those at higher risk of Covid-19 due to age or co-morbidities, could be determined by the Centers for Disease Control and Prevention (CDC) and healthcare providers.

Moderna’s request is significantly broader than Pfizer and its German partner BioNTech’s application that was filed earlier this week with US regulators for a second booster shot for people aged 65 and older.

Moderna, without specifically commenting on the effectiveness of a fourth shot, said its submission was partly based on data recently published in the United States and Israel following the emergence of the Omicron variant.

The Food and Drug Administration did not immediately respond to a Reuters request for comment.

US health officials, including the top infectious disease official Anthony Fauci, have raised the prospect of a fourth shot, especially for older people and to prepare for the possibility of another surge in cases.

CDC data has shown that vaccine efficacy wanes over time and a third shot helps restore it. The agency, however, has not released comprehensive data based on age or health status to back the case.

Pfizer and Moderna are betting additional booster doses will be needed as new virus variants emerge.

The news was first reported by the New York Times.

While Covid cases are falling in the US and much of the world, infections are rising in China. In the UK and Europe, there has been a reversal in the downward trend of coronavirus cases as economies have opened up and a second variant of Omicron circulates.