The massive 30 per cent jump in Covid-19 cases in 24 hours on April 13 to over 10,000 cases from 7,800-odd the day before, the highest in 223 days, is a potent reminder of the deeply infectious nature of this virus that has afflicted the world since the end of 2019. As on April 13, the health ministry has recorded 44,998 active cases. As before, Kerala, Maharashtra, Delhi, and Uttar Pradesh have recorded the heaviest case-loads, suggesting a heavy incidence of reinfection. Though the medical fraternity has underlined the mild nature of the current XBB.1.16 variant, also known as Arcturus, which is a sub-variant of Omicron, with far fewer hospitalisations or fatalities, the case to impose robust Covid protocols in public places remains compelling. Given the new virus’ ability to “escape” the immune system, it has been the primary cause of Covid among children and the elderly. Omicron, which has over 50 mutations, has been responsible for the largest surge in Covid cases since 2019 and has been designated a “variant of concern”, which means it can cause infections in those who have been vaccinated or previously infected. In that context, the government has done well to conduct mock Covid protocol drills in hospitals. The bigger question is the long-term public-health responses.

)