The World Health Organization Director-General Dr. Margaret Chan reported today that the
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Global production, by about 25 pharmaceutical companies in all, is projected to be 2 billion to 4 billion doses over a year. However, the number of people who could be protected is uncertain since the first tests of the pandemic vaccine showed that adults will need only one shot, not two as some experts predicted. Children, however, are likely to need two.
WHO however, has warned that production of swine flu vaccines will fall "substantially" short of the amount needed to protect the global population. "Current supplies of pandemic vaccine are inadequate for a world population in which virtually everyone is susceptible to infection by a new and readily contagious virus," Dr. Margaret Chan said in a statement.
Despite new evidence that only one dose of the vaccines currently being tested will be enough for most people, WHO spokesman Gregory Hartl said output next year will be "substantially less" than the 4.9 billion doses annual production forecast. This information comes as some 25 pharmaceutical laboratories working on vaccines have indicated that weekly production is lower than 94 million doses, he said, due to poorer than expected yields from the so-called "seed virus" strains developed by WHO-approved laboratories. In May, WHO forecasted a weekly output of 94.3 million doses, assuming full scale vaccine production.
Dr. Chan did say that the donations from the aforementioned countries, as well as doses pledged by some manufacturers, will help to alleviate issues in the imbalance of the supply and demand for the vaccine. The WHO has not yet said how it will distribute the vaccine.
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