By Marilynn Marchione 

Updated 12:28 pm ET

An experimental vaccine against the coronavirus showed encouraging results in very early testing, triggering hoped-for immune responses in eight healthy, middle-aged volunteers, its maker announced Monday.

Study volunteers given either a low or medium dose of the vaccine by Cambridge, Massachusetts-based Moderna Inc. had antibodies similar to those seen in people who have recovered from COVID-19.

In the next phase of the study, led by the U.S. National Institutes of Health, researchers will try to determine which dose is best for a definitive experiment that they aim to start in July.

In all, 45 people have received one or two shots of the vaccine, which was being tested at three different doses. The kind of detailed antibody results needed to assess responses is only available on eight volunteers so far.

The vaccine seems safe, the company said, but much more extensive testing is needed to see if it remains so. A high dose version is being dropped after spurring some short-term side effects.

The results have not been published and are only from the first of three stages of testing that vaccines and drugs normally undergo. U.S. government officials have launched a project called “Operation Warp Speed” to develop a vaccine and hopefully have 300 million doses by January.

Worldwide, about a dozen vaccine candidates are in the first stages of testing or nearing it. Health officials have said that if all goes well, studies of a potential vaccine might wrap up by very late this year or early next year.

More than 4.7 million infections and 315,000 deaths from the coronavirus have been confirmed worldwide since it emerged in China late last year. There are no specific approved treatments, although several are being used on an emergency basis after showing some promise in preliminary testing.

Share:
More In Business
'GTA VI' Trailer Released Early and How Game Will Impact Industry Overall
Fans of the Grand Theft Auto series got a glimpse of the latest release that's not due out until 2025. The trailer was officially released after a leak on the 'X' platform, giving an idea to industry experts of the massive effect GTA will have on the gaming sector. Cheddar News senior reporter Michelle Castillo breaks it all down.
Stretching Your Dollar: End-of-the-Year Tax Questions Answered
Tax season is around the corner as soon as we conclude the holiday festivities. Mark Steber, chief tax information officer with Jackson Hewitt, joined Cheddar News to discuss some tax changes that people should be aware of and what to expect during next year's tax filing season.
Holiday Crafts for Less
Getting crafty for the holidays to entertain guests can be pretty expensive. Cheddar News explains how you can do all of that on a budget.
Stretching Your Dollar: How to Treat Yourself for the Holidays
The holiday season is here and it could be a stressful time as people plan shopping, cooking and traveling. Sally Holmes, editor-in-chief of InStyle Magazine, joined Cheddar News to discuss a new social media trend #Treatculture that helps people take a moment to treat themselves and how that is a psychological benefit to relieve stress.
Load More