Rise in COVID-19 infections in people who had first vaccine dose, likely due to relaxing preventive measures

United Kingdom // Israel // 28 March, 2021

An article in the British Medical Journal looks at several publications that have shown a rise in infection in people who have received their first dose of a COVID-19 vaccine. "Earlier this month a study led by Public Health England of vaccination in the over 70s found a “notable” rise in covid-19 infections in people immediately after they received the AstraZeneca vaccine. Similarly, a study of Israel’s vaccination programme, reported in February, found a similar spike in cases among people who had just been jabbed. It found that daily incidence approximately doubled after vaccination until about day 8.

A survey by the UK’s Office for National Statistics, looking at coronavirus and vaccine attitudes and behaviours in England in February,3 shows why these spikes may be happening. Among over 80s who had received their first dose of a vaccine in the previous three weeks, 41% reported having met up with someone other than a household member, care worker, or member of their support bubble indoors since vaccination, thereby breaking lockdown regulations.[...] A YouGov survey in December suggested that 29% of people would follow pandemic related rules and restrictions less strictly once they were vaccinated."

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