One of the boxes containing the Moderna COVID-19 vaccine is ready to be sent to the McKesson Distribution Center in Olive Branch, Mississippi, USA, December 20, 2020.
Paul Sancya | Reuters
Moderna plans to test a booster shot of its Covid-19 vaccine one year after the initial two-dose immunization, as the duration of protection against brand new vaccines is not yet clear.
The biotech company plans to begin testing in July, according to a corporate presentation this week. Her clinical trial sites have already begun contacting participants in his earlier research, according to an email shared by one of those people.
“From what we̵
The first participants in Moderna’s clinical trials in humans received their photographs in mid-March; a second was given four weeks later. Because previous trials tested multiple doses of the vaccine, those with lower doses than the final dose – 100 micrograms – would receive boosters earlier, while those with 100 micrograms or higher would receive their annual brand booster, according to e-mail to the participants.
The booster planned now is the same version of the vaccine on the market, but Moderna CEO Stefan Bansel said the vaccine may need to be adapted in the coming years to cover new variants.
“I think it’s going to be a flu-like market,” he told CNBC. Moderna recently launched a seasonal flu vaccine program.
A booster study of Moderna’s Covid-19 vaccine will assess both safety and how much immune response an additional shot generates a year later, Bancel told a conference this week.