COVID vaccines: How to make sense of reports on their effectiveness

Real-world trials come with some problems: The target of vaccination, what time it was rolled out and emerging variants

Why other African countries need to guard against South Africa COVID-19 variant

WHO and African Centres for Disease Control to strengthen genomic surveillance capacities

Effectiveness of COVID-19 vaccines against infection, severe disease declined with new variants; here's how

AstraZeneca vaccine provided least protection against infection, showed most rapid decline

WATCH: Will mixing COVID-19 vaccines be effective?

Some early studies have shown that combining vaccines produce a better immune response. But the efficacy of the vaccine combination is yet to be …

COVID-19: Pfizer, AstraZeneca efficacy significantly reduced against omicron, says UK health agency 

Omicron is displaying growth advantage over delta and is poised to become dominant variant in UK

Covaxin effective against UK Strain: What does this mean in absence of efficacy data?

Being a whole-virus vaccine doesn’t give Bharat Biotech product any advantage at this stage, say experts

Lateral Thoughts: Waiting for bad news

Adverse reactions are part and parcel of vaccination. We can know about safety of COVID-19 vaccines being used in India only after people receive …

Omicron may already be in most countries, WHO warns

People dismissing omicron infection as mild may fuel spread, says WHO

Pfizer withdraws application for Emergency Use Authorisation in India

The company will resubmit application after getting more data

Experts suggest updating vaccines for new variants. How does it work & what are the challenges?

It is easier to update certain vaccine platforms than others, say experts

COVID-19 Challenge 2021: How does the world overcome vaccine shortage

The pharmaceuticals industry must come together to ensure all adults are vaccinated against the novel coronavirus; …

COVID-19 in Africa: The pain of getting the jab

The COVAX Facility and the African Union are struggling to bring some relief to Africa which has been suffering from vaccine apartheid

What COVID-19 vaccine side effects might I expect?

In the vast majority of cases, any side effect you feel will be over within a few days, and there is no reason for concern

Coronavirus vaccines: TRIPS waiver caught in WTO labyrinth

Little change in the position of countries opposing waiver of intellectual property rights; India-South Africa proposal being through hoops …