Four more persons have tested positive for swine flu in the national capital, taking the total number of those affected by the disease to 35 in the country today.
With the new cases in Delhi, the number of those affected by swine flu in the city has risen to ten, but five of them have already been discharged from hospital after treatment.
"The four persons who have tested positive for swine flu in the capital are in hospital and undergoing treatment," said Dr Shivlal, Director of National Institute of Communicable Diseases (NICD).
Meanwhile, eight persons with suspected swine flu symptoms are still in hospital as results of tests carried out on their samples are still awaited, sources in Delhi government added.
In the past two days alone, as many as 12 cases have tested positive. According to the Health Ministry, samples of 315 persons have been tested till yesterday.
With most swine flu affected people coming from America, the government has said the US should "suo motu" start screening outbound passengers for symptoms of the disease.
New Delhi has also asked the developed countries to take action to contain and check the spread of swine flu at their end which would help in stopping the spread of the infection to the developing nations.