The Central Epidemic Command Center (CECC) announced that according to the pandemic influenza A (H1N1) epidemic surveillance data compiled by the Taiwan Centers for Disease Control (Taiwan CDC), at the time of writing, a total of 864 hospitalized cases of the pandemic influenza A (H1N1) infection have been reported.Since the implementation of the H1N1 vaccination campaign on November 1, 2009, a total of 331 hospitalized cases of H1N1 infection have been reported. 315 of the cases have not received the H1N1 vaccine prior to the disease onset and 16 have received the vaccine prior to their disease onset. A further analysis was conducted on the epidemiological data of the 16 cases.12 of the cases are children aged between 6 months and 9 years who have only received the first of the two H1N1 vaccine doses. 4 of the 16 cases are aged above ten years who require only one H1N1 vaccine dose.However, the periods between the disease onset and the vaccination for those 4 cases are all within two weeks.In addition, none of the children who have completed two H1N1 vaccine doses have been hospitalized for H1N1 infection.In light of the above, CECC reminded the public that it takes three weeks for the H1N1 vaccine to induce immunity in the recipient and children who are aged under ten require two H1N1 vaccine dose to have the desired immunity.CECC once again urged the public to get vaccinated against H1N1 as soon as possible and children who have not had the second of the two H1N1 vaccine doses to get the second dose within one month of getting the first dose.

During the first week of implementing the newly modified vaccination policy where the residents are given the option to choose between receiving Adimmune and Novartis vaccines, a total of 6,798 vaccines have been administered.2,381 of the vaccines administered are from Adimmune and the remaining 4,417 vaccines are from Novartis.

On the other hand, Taiwan CDC has posted the brand and batch number of vaccines that have resulted in each suspected vaccine adverse event on the Taiwan CDC’s website for references by the public.