The Capital reported four new cases of H1N1 infection on Sunday, of which three were people who had been abroad recently.
Among the fresh cases the youngest is a 15-year-old student, who came back from Singapore on July 22. The others are a 52-year-old man who arrived from Malaysia and a 24-year-old man who had been to Sydney recently.
The fourth in Delhi, however, contracted the infection from a previously reported positive case. Meanwhile, the four fencers, part of an Indian team at an international event in Singapore, who had tested positive for the virus were discharged from the RML Hospital on Sunday.