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
Watchdog Slams IRS Identity Theft Case Delays as “Unconscionable”
An independent watchdog within the IRS reports that while taxpayer services have vastly improved, the agency is still too slow to resolve identity theft cases. And National Taxpayer Advocate Erin Collins says those delays are “unconscionable.” Erin M. Collins said in the report released Wednesday that overall the 2024 filing season went smoothly, though IRS delays in resolving identity theft victim assistance cases are worsening. It took nearly 19 months to resolve self-reported identity theft cases as of January, and Wednesday's report states that now it takes 22 months to resolve these cases.
A.I. Investments Carry Amazon Over $2 Trillion Valuation Threshold
Amazon.com Inc. surpassed $2 trillion in market value for the first time in afternoon trading on Wednesday. The push higher for Amazon’s stock market valuation comes a little more than a week after Nvidia hit $3 trillion and briefly became the most valuable company on Wall Street. Nvidia’s chips are used to power many AI application and its valuation has soared as a result. Amazon has also been making big investments in AI as global interest has grown in the technology. Most of the company’s focus has been on business-focused products.
Load More