Covid BF7 Variant LIVE updates: Prime Minister Narendra Modi on Thursday cautioned against complacency and advised for maintaining strict vigil in the country amid Covid cases soaring in China. Meanwhile, months after Shanghai endured a brutal lockdown to stop the spread of Covid, the virus is starting to make its way virtually unchecked through the megacity’s 25 million-strong population. Hospitals are struggling to cope with the number of infected patients, pharmacies are turning customers away empty-handed, businesses are shutting because staff are off sick, most schools have closed and usage of public transport is plummeting. Stay with TOI for the latest developments —