The race to find a working coronavirus vaccine has taken a large step forward with promising results from one leading scientific firm.
Johnson & Johnson today kicked off U.S. human safety trials for its Covid-19 vaccine after releasing details of a study that showed monkeys received strong protection from a single dose.
When exposed to the virus, six out of six animals who got the candidate vaccine were completely protected from lung disease.
In addition, five out of six were protected from infection as measured by the presence of virus in nasal swabs, according to the study published in the journal Nature. "This gives us confidence that we can test a single-shot vaccine in this epidemic and learn whether it has a protective effect in