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Scientists noted that the IHU variant existed even before Omnicron, but failed to spread.

Researchers have found that T cells - one of the bodys key defences against Covid-19, can mount an effective immune response against Omicron, if antibodies fail to do that.

Israel has approved a fourth dose of the Covid vaccine for people aged 60 years old and above and medical staff, as the country continues to see an unprecedented surge in fresh cases.

With 175 new cases of the highly-transmissible Omicron Covid-19 variant detected in last 24 hrs, Indias tally on Monday rose to 1,700, with Maharashtra and Delhi continuing to be the worst-hit, said the Union Health Ministry.

The daily test positivity rate (TPR) in Gow now stands at an alarming 10 percent

23 states have reported cases of the new variant, the Ministry said. Karnataka Minister for Health K. Sudhakar said on Monday that the tally of Omicron cases in the state has increased to 76 after 10 new cases were confirmed.

A top Cambridge University expert had recently warned that India will witness an Omicron explosion

Long-term symptoms usually include shortness of breath, fatigue, difficulty concentrating, insomnia, and brain fog.

Fire officials in South Korea say pet owners have been instructed to put their guards up and be more vigilant of cats

Israel has recorded an unprecedented surge in coronavirus cases and Prime Minister Naftali Bennett warned: "The storm is coming towards us."