The Pfizer vaccine may not be the best choice for frail people, but it’s too early to make firm conclusions
While the deaths of elderly people in Norway are sad, they shouldn’t be cause for alarm. This actually tells us the vaccine is stimulating …
Pfizer’s COVID-19 vaccine becomes first to get emergency authorisation
UK government gives nod on basis of interim results, vaccine to be made available by next week
New Delta+ variant found in India can escape antibodies
Mutations in the Delta+ variant can render vaccines and treatments ineffective
Making COVID-19 vaccines in Africa: Advances and sustainability issues
Demand, market for locally produced vaccines critical for sustainability of 15 COVID-19 vaccines manufacturing facilities
COVID-19 surge: Why has China not attained herd immunity despite high vaccination coverage?
Germany, South Korea, Vietnam are also reporting increase in COVID-19 cases despite extensive vaccination
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
Delaying the second COVID-19 vaccine dose: A medical expert answers key questions
The uncertainty is around how long the protective effect of the first dose will last without a second shot
COVID-19 vaccines are coming – how will we know they work and are safe?
The results of the Pfizer vaccine trial are highly promising. But the road to eradicating the coronavirus is likely to be long and difficult
Lateral Thoughts: Waiting for the vaccine?
Vaccination programmes cannot be dealt with outside the purview of public health
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
Dummy’s guide to how trade rules affect access to COVID-19 vaccines
The WTO is considering whether to temporarily waive certain rules about TRIPS, to allow more countries access to vaccines, drugs needed to …
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 vaccines: How Pfizer and Moderna’s 95% effective mRNA shots work
Should we expect the pandemic to be over once a vaccine is available for public use? Not exactly. A vaccine will not be perfect, and it takes …
Moderna’s COVID vaccine reports 95% efficacy. It means we might have multiple successful vaccines
It opens the door to the possibility we might have many successful vaccines, and be able to tailor different vaccines to people with different needs
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 …
COVID-19 immunity: how long does it last?
In UK’s second wave, previously infected health workers were either completely protected from reinfection or were asymptomatic
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
COVID-19 vaccine: Oxford-AstraZeneca up to 90% effective in late stage trial
Adenovirus vaccine can be stored at 2-8°C; company to apply for emergency authorisation
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