India reached out late Monday to African countries facing the challenge of the Omicron variant of Covid-19, the latest in the series which some experts termed as more deadly than all the other varieties. It is suspected to spread with lightning speed and is reported by some to be immune to the various vaccines available till now. But so far there is no definitive proof of any of these claims. But, the news of the Omicron variant, first reported in southern African nations --- Botswana, Eswatini, Lesotho, South Africa, Malawi, Mozambique, Namibia, and Zimbabwe -- has spread nervousness across the world, with several countries banning flights from these eight nations.