Russia's health officials have given a go-ahead to testing a combination of the AstraZeneca coronavirus shot and the single-dose version of the domestically developed Sputnik V vaccine, according to the country's registry of approved clinical trials.
The small study, which was scheduled to start July 26 and end in March next year, will enroll 150 volunteers and look at the mixed regimen's safety and capability to trigger immune response, records show. It will be conducted in five medical facilities in Moscow and St. Petersburg.