Delta variant reduces vaccine effect: UK experts

The Delta variant of COVID-19, or the B1.617.2 variant of concern (VOC) first identified in India, is about 60 per cent more transmissible than the Alpha strain identified in the United Kingdom and......

MHA issues fresh advisory to states amid rising Omicron cases

Amidst initial signs of surge in cases of COVID-19 as well as increased detection of Omicron variant in different parts of the country, the Centre on Monday issued a fresh advisory to all States......

Omicron thrice more contagious, activate war rooms: Centre to states

Asserting that the Omicron variant is at least thrice more transmissible than Delta, the Centre on Tuesday asked states and union territories to 'activate' war rooms, keep analysing even small......

Omicron overtakes Delta; less severe but not mild: WHO

Omicron is quickly overtaking the Delta variant of COVID-19 and becoming dominant around the world, a senior World Health Organisation (WHO) official has warned, with the global health agency......