The H3N8 flu, which affected harbor seals in England in 2011, is back and stronger than ever. It has been said that the virus has gone so strong that it can transfer to people as well to other animals.

The revelation was done by a group of US researchers, who are suspecting that the virus might have passed on from the virus, which is commonly found in birds. The study researchers said that they were quite surprised to know that 162 harbor seals have died due to the virus.

Since then they wanted to enquire about the same. One of the authors of the studies, Ian Lipkin from Columbia University, US, was of the view, "It's something that's been circulating for a while in birds, but we've not had this sort of die off relating to this virus in the past".

After studying the gene for a while, they have got to know that mutations have been taking place for a while, and H3N8 is one such mutation. To talk about its circulation among humans then it can be through cough and sneeze.

It has been revealed that the pandemic flu, which has caused so many deaths among seals, could take place from different routes.