In February, 16% of the world's population pre-ordered 70% of available COVID vaccines - now, researchers at Colombia University reveal that some poorer countries won't be able to vaccinate their population until 2023.
Pfizer CEO Albert Bourla suggested that fully vaccinated people would need their third vaccine dose, maybe 12 months after they got their second - the EU is currently in talks to secure a further 1.8 billion doses.
According to a Kaiser Permanente study, the rate of recommended vaccine doses administered to children has dramatically decreased since the outbreak of COVID-19.
Yesterday (14 April) EU President Ursula von der Leyen announced that the Commission would create a third contract with Pfizer, for 1.8 billion doses between 2021 to 2023.
Researchers in the UK started a clinical trial on mixing vaccines in February - today (14 April) a new study will look into mixing Moderna and Novavax doses.
US authorities paused the use of the Johnson & Johnson single dose vaccine as they look into six cases of blood clots that developed in women aged between 18 and 48.
Uninfected people lived with one infected individual as part of the study - the COVID antibody drug gave them 72% protection against catching the virus themselves.
New CDC guidelines suggest that surfaces are a "low-risk" for COVID transmission - cleaning surfaces with detergent or soap once a day should be enough to reduce possible virus levels.
New data from the REACT study finds that the prevalence of COVID is down by 60% in one month, but primary school children have the highest COVID infection levels.
The UK's medical authorities cleared continued use of AstraZeneca, but say that 18-29 year olds should take an alternative vaccine to AstraZeneca if possible.
A new study by Washington University School of Medicine suggests that breastfeeding mothers may pass protective COVID-19 antibodies to their babies through breast milk for at least 80 days following vaccination.
