On Tuesday, the World Health Organization announced that the havoc of H1N1 flu epidemic has got over as various nations have made stringent efforts to curb the disease.

The declaration was made as the outbreak of the flu has been checked by the nations, as the people have got immunized against the same by taking vaccination.

Also, the period of the dominance of the H1N1 swine flu has ended and the season has come for other seasonal flu bugs like H3N2 type A and type B viruses.

But, still there are some cases found in New Zealand, which are guised in the form of other seasonal viruses. So, it should not be assumed that the virus has flown away forever, as told by Margaret Chan, Director-General of WHO.

He said, "This pandemic has turned out to be much more fortunate than what we feared a little over a year ago".

The H1N1 flu spreads in the winter usually. It affected a number of people in the country, especially young adults, pregnant women, people with neuromuscular disorders and others having medical problems like obesity.

The U. S. Centers for Disease Control and Prevention in April stated that the flu vaccines are now in abundance and for the vaccination in 2010-2011, H1NI vaccine will be used along with the combination against three other viruses.