Delhi Delhi: According to a study, previous infection of seasonal H1N1 flu can increase immunity and reduce the severity of H5N1 bird flu. The study published in Journal Emerging Infections Disease can help explain why most of the reported reports of H5N1 Bird Flu in the US have not had fatal consequences.

Researchers in Pittsburgh and Emori universities conducted a study to understand the spread of the virus among people. Using the lady model, he found that the pre -existing immune affects the severity of infection. This protected them from a serious illness and death from a strain of H5N1 bird flu – which is currently spreading to wild birds, chickens and cows. On the other hand, without any pre -immunity, the pharmacies had more serious illness and fatal consequences.

“All human flu epidemics emerge in the context of already existing immunity,” said Valerie Le SEZ, a lead author of microbiology and molecular genetics at Pittsburgh University.

“Our model is not correct because human immune response is complex. But if we are using pharmacies as a surrogate, it is very important to do so, because they already have immunity,” said that the clinical symptoms of flu infection are developed in the lady which are very similar to humans.

The team showed that from the small number of intrained by the H5N1, from the small number of infected ferrets, only those who were first in contact with the H1N1. Despite the same degree of damage to the lung tissue, in the pheres with pre-immunity, H1N1 saw more fever, overweight than people with pre-immunity and a decrease in firmness. Immunity from the back infections helped animals to clean the virus by rapidly cleaning the virus from the passage of their nose and limited the infection. The need for concrete efforts to consider was highlighted.