The research investigated SARS-CoV-2 transmission, infection outcomes, and immunity in residents and staff in long-term care facilities in England for adults aged 65 years and older since June 2020from Top World News- News18.com https://www.news18.com/news/world/single-dose-of-pfizer-astrazeneca-covid-vaccine-offers-60-per-cent-protection-lancet-study-3886301.html

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