Weeks do matter when it comes to the Delta strain. With Australia still heavily reliant on the AstraZeneca vaccine, for now it makes sense to reduce the time between the first and second jab.
AstraZeneca, Pfizer and Moderna appear equivalent in reducing your chance of serious illness from COVID-19.
Even if we came up with a definition of what makes the "best" vaccine, we don't have the luxury of choice, when vaccines are in short supply.
The COVID-19 variant responsible for Victoria's latest outbreak is one of three Indian variant sub-types, which spreads more easily than the original strain. Here's what we know so far.
New, early-stage research suggest that B16172 does have some ability to escape the effects of vaccines.
Variants of interest and variants of concern seem to be popping up at an alarming rate. But how many of them do we really need to worry about?
A public health expert outlines what Britons can expect from their upcoming booster programme.
Research has shown that vaccines have reduced infections, disease and hospitalisations – but will they continue to do so in the face of new variants?
As the Indian variant becomes more prevalent within our borders, anti-South Asian sentiment is also growing, putting the community at a higher risk of hate crimes.
A viral immunologist answers key questions about the B16172 variant.
The B16172 variant of concern risks spreading in the UK when restrictions on indoor socialising ease on May 17.
There's still a lot we don't know about the latest variant of concern: B16172.
It sounds too good to be true, a vaccine that can protect against future virus variants. But governments around the world are keen to learn more.
Coronavirus is 30,000 RNA 'letters' long, meaning there are over a quintillion possible genome permutations.
Britain moves to protect itself from the B1617 variant, which vaccines may be less effective against.
A coronavirus variant with a double mutation has been found in the UK, with cases currently doubling every week.
Variants of the original SARS-CoV-2 are now in wide circulation. That means the third wave of COVID-19 has come with new questions about the variants, their effects and what might come next.
With changing recommendations about AstraZeneca's COVID-19 vaccine making headlines, many people have questions about its use.
As the US vaccinates millions more people each day, the novel coronavirus works to survive. It does this by mutating. So far, several variants are worrisome. A virologist explains what they are.
A new coronavirus double mutation found in India is better shaped to invade our cells.