Herd immunity is often presented as a simple mathematical calculation, but achieving it is far from easy with shifting goalposts in the form of variants and pace of vaccinations. Understanding how...

British Home Secretary Priti Patel on Sunday categorically denied that achieving so-called 'herd immunity' was ever the UK government's official policy at the start of the COVID-19 pandemic last year,...

The longer the virus has to spread uncontrolled in unvaccinated parts of the world, the more opportunities it will have to develop such variants, which would inevitably make their way to the developed...

There is consensus among scientists and public health experts that reaching 'herd immunity' is unlikely in the US, when it comes to Covid-19, the media reported.

“Europe will reach herd immunity in July, latest by August,” Ugur Sahin, BioNTech's chief executive, told reporters.

South Africa’s health minister on Thursday detailed plans to vaccinate 40 million people or two-thirds of its population against COVID-19 in order to achieve herd immunity, as a mutant variant drove...

The absolute number of people infected with COVID-19 in India may never be known but much of the scientific community agrees the downward trajectory of the disease is real and can likely be attributed...