World Coronavirus Dispatch: Researchers call for shots that target Delta

Ardern's popularity drops as New Zealand stumbles on vaccination, Pfizer may get full approval for its vaccine by September, and other pandemic-related news across the globe

Covid shots targeting Delta may be needed, researchers say

With Delta variant potentially evading immunity and infecting people with greater vigour, researchers of a large study in England have pitched the idea of vaccines that are designed to target this rogue variant. Researchers, who studied the third wave of infections in UK, have found that there were infections both among vaccinated and unvaccinated. The effectiveness of vaccines at stopping infection during the study period fell to 49 per cent from 64 per cent a month earlier, while the protection from developing symptoms was down to 59 per cent. “Development of vaccines