https://www.businessinsider.in/stock-market/news/zoom-tumbles-16-as-pfizers-vaccine-success-drags-on-work-from-home-stocks/articleshow/79132092.cmsZoom, the popular video conferencing app with nearly 300 million daily users, witnessed a drop in share prices after the pharmaceutical giant, Pfizer announced that its Covid-19 vaccine has proven to be 90% effective in building immunity against the virus.

Zoom has been witnessing a massive surge in daily users from 10 million daily users in December, 2019 to 200 million daily users in March, 2020.

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