s capital city. yogita limaye, bbc news, delhi. professor nathan grills is a public health physician at the university of melbourne, and australia india instituteo are going through similar situations, and i get constant phone calls and whatsapp messages from friends in india with similar stories to what�*s being recounted there, trying to find oxygen and treating sick ones at home because there�*s no hospital beds. it�*s really dreadful to see the health system so overwhelmed like this. it raises the question of, given the scale this problem, a lot of people might say, "well, surely, why notjust have a national lockdown? bring every thing under control, stop people moving around the country, try to restrict the opportunities for transmission?" in yourjudgment, why wouldn�*t that make comparatively little difference? it goes back to what level of infection you have in the community. i think the first lockdown to happen last year in india did slow the transmission of the virus, obviously, and i think that�*s an option now. the government�*s weighing up the effect of a lockdown onjobs, the economy. in india, where you�*ve got a large number of pe