Lucknow, Feb 20 (ANI): Union Health Minister Jagat Prakash Nadda said on Friday that there is no need to panic about swine flu and that there is an adequate stock of medicines to deal with the pandemic. He added swine flu medicines were being sold by registered stores only but that did not mean there was a scarcity of the cure. Nadda also stressed on the need for personal hygiene and building up immunity to tackle the disease which spreads more in winters. Nadda also said healthcare workers were being vaccinated as they worked in close proximity with infected patients.