New Delhi (PTI): A(H1N1) flu cases crossed the 500-mark in the country with 11 more people, including four in the national capital, testing positive for the virus on Thursday.

"With the 11 fresh cases, the total number of cases has risen to 509. Out of this, 365 patients have been discharged.

Rest of them remain admitted to identified health facilities," Health Ministry officials said.

Besides the four fresh cases in Delhi, three cases are reported from Pune, two from Kozhikode and one each from Kochi and Hyderabad.

In the national capital, three cases -- two girls aged seven and a 12-year-old boy -- contracted through the human-to-human transmission mode while the fourth case is of a 12-year-old boy who travelled from Muscat and reached Delhi on July 28.

All three cases in Pune -- two girls and a boy aged 11 years -- are contacts of previously reported A(H1N1) flu cases.

Out of the two cases in Kozhikode, one case is that of a 31-year-old man who reached the southern city from Georgia on July 24. Another 31-year-old man, who travelled from Singapore and reached Kozhikode on 28 July 2009, was the second case reported from this city.

In Kochi, a 20-year-old man who reached this port town from Singapore on July 22 tested positive while the case in Hyderabad was that of a five-year-old boy who is a contact of a previously reported case.

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