In issuing their health advisory, the CDC reported that it took 85 samples of the flu virus and found that the current vaccine does not safeguard against the flue in 52% of samples taken. While the agency is capable of tweaking the vaccine to provide a better safeguard against the known strains, it isn’t something that can be achieved in a short period of time. It will take the CDC up to four months to adapt the vaccine during which time the current flu season will largely be over.
The news isn’t all bad though. Those who get the current influenza vaccine will be protected against most of the flu strains out there. In the event that someone vaccinated does come down with the flu from other strains such as the H3N2, their symptoms should be milder as a result of the vaccine. This story was shared with me via Darius Fisher.