bird flu virus is constantly changing, as it genetically mutates. This makes the identification of a specific type of virus as the culprit absolutely impossible. For the same reason pharmaceutical preparations targeted a specific type of virus would be useless in case of influenza, caused by a virus modified derivative of the oldest known.

WHO maintains a Global Influenza Surveillance Network is 110 influenza centers in 83 countries and four WHO Collaborating Centres. Representative samples of patients with avian flu, as symptoms are collected and analyzed for avian influenza virus. The latest strains in circulation around the world are identified and made recommendations on the composition of the influenza vaccine. This is done in February and September each year.

Following is the WHO guide for the strains in the vaccine strain choice if they are to be used in the vaccine, to the final vaccine is a long process can take up to 6-8 months. The new vaccine production begins immediately after the announcement of WHO strains. The strains are then subjected to quality tests. While all three strains are mixed, both influenza A and influenza B strain of one, in a single vaccine. It is now that the vaccine is packaged and transported to the sale and administration.

The vaccine against the bird flu has its own side effects. Usually, showed redness and swelling;. Fever, vomiting, headache, sore throat and minutes are also found physical complaints in about 5% of cases

Currently, the total production capacity of the world about 300 million flu vaccines annually. And the world population around 6.5 billion! It is therefore evident that in the event of a pandemic can not all be vaccinated, unless we or stocks of vaccine or a state of war are made, the former is not possible, because changing the vaccine composition is constantly every year and would not be possible in the near future . For these reasons, if a pandemic occurs, then for a few months of departure, we will not vaccines against avian influenza are available and our only saving grace would not have be-drug measures.

The quantity of vaccine should be available to meet the health care system in the world, a clearly defined distribution plan and a reliable supply chain applications have. This level of distribution and administration of vaccines is just not feasible today.

It is now clear that the amount of vaccine produced annually lost if the changes flu virus from year to year. But these drugs are manufactured to test and demonstrate the technical capability of the system is available. WHO reports that include the use of antiviral drugs and vaccines, the most effective measures against the threat of avian flu. But again, it is obvious that only the vaccination can not help the 6.5 billion population country. It’s just a desperate, of the measures that we can count. In the meantime, we must continue to improve public knowledge about preventive measures, continue to take all precautions to reduce the spread of the flu and keep looking for better ways to fight the virus.


Vaccine against influenza