Amdavad Municipal Corporation (AMC) today said it conducted second survey related to Covid-19 infection, covering 10,000 persons. While the earlier survey showed 17.61 per cent positivity, the latest survey shows 23.24 per cent positivity. It means there’s 5.5 per cent…
![No herd immunity yet, antibody doesn't sustain for long after Covid patients recover: AMC survey No herd immunity yet, antibody doesn't sustain for long after Covid patients recover: AMC survey](https://www.vitaminrush.com/wp-content/uploads/2020/09/1599091983_maxresdefault-1170x508.jpg)