A drone dispersed clouds of disinfectant in the sky above Indonesia's second-largest city Surabaya on Tuesday, a response to the coronavirus pandemic which is catching on around the world despite warnings from health experts.
Mass disinfections, often by workers in protective gear resembling characters from the comedy film Ghostbusters, have become a common sight — from Turkey's Grand Bazaar to bridges in Mexico and migrant workers in India.
But the visually impressive measures taken to contain the fast-spreading virus which has killed over 37,000 people globally, have been criticized by disease specialists as a health hazard as well as a waste of time and resources.