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Stronger warnings are needed to curb socialising after vaccination--behaviorial scientists ,
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Experts have called for stronger health warnings for people being vaccinated against covid-19 after observing a rise in infections shortly after vaccination, suggesting that many people are letting their guard down before the vaccine has taken effect.
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.1 Similarly, a study of Israel’s vaccination programme, reported in February, found a similar spike in cases among people who had just been jabbed.2 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 group of health psychologists from King’s College, London, University College London, and the University of East Anglia have written in The BMJ that the studies, taken together, indicate the need to ramp up health warnings.4
“Looking at both strands of research—from Israel and the UK—it’s reasonable to suggest people are letting their guard down after they have their first dose,” said James Rubin, professor of psychology of emerging health risks at King’s. “The research has shown that immediately after a first jab people are more likely to be flouting social distancing, meeting people outside their household or bubble—and meeting them indoors.”
A YouGov survey in December suggested that 29% of people would follow pandemic related rules and restrictions less strictly once they were vaccinated.5
Paul Hunter, professor of health protection at the University of East Anglia, who reviewed the Israeli data, drew similar conclusions. “While it is not possible to know for certain why this [the spike in cases soon after vaccination] may be the case, there have been concerns that people may believe they are protected as soon as they have had . . . their first injection and so start engaging in risky behaviour more than previously,” he said.
Rubin said that authorities needed to ram home the message that people have little or no immunity to the coronavirus immediately after their first jab. Full immunity can take as long as three weeks to develop. ...
ALSO SEE: As more people are vaccinated against Covid-19, Americans are going out more, poll finds
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