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Though the COVID-19 pandemic has now been active for a year, not much is known about what happens when people who have already had COVID-19 are infected for a second time.

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COVID-19 vaccine messaging that focuses on personal benefits is most effective with those who are hesitant

For the one in ten who say they won’t take a COVID-19 vaccine, messaging that focuses on personal rather than collective benefits is more effective.

Preliminary data suggests mixing Covid-19 vaccine increases reactogenicity

Research, from Com-COV study comparing mixed dosing schedules of Pfizer / Oxford-AstraZeneca vaccines, shows increase in the frequency of mild-moderate symptoms in those receiving either mixed dosing schedule. Adverse reactions were short-lived, with no other safety concerns. Impact of mixed schedules on immunogenicity unknown as yet, with data to follow from this study.

Oxford vaccine professor: rich countries have a moral duty to share their COVID-19 shots

Andrew Pollard writes about vaccine equity in his article for The Conversation.

Increasing vaccine uptake among ethnic minorities

Dr Samantha Vanderslott and Dr Seilesh Kadambari discuss their collaborative approach to providing ethnic minority groups with information on vaccines.

Alternating vaccines trial expands to include two additional vaccines

Researchers running the Com-Cov study, launched in February to investigate alternating doses of the Oxford-AstraZeneca vaccine and the Pfizer vaccine, have today announced that the programme will be extended to include the Moderna and Novavax vaccines in a new study.

UK and EU regulators conclude benefits of vaccination continue to outweigh the risks

Medical regulators in the UK and Europe have announced their conclusions from their reviews of very rare cases of unusual blood clots in people who have received the Oxford-AstraZeneca coronavirus vaccine.