Anthrax Vaccine Lower, Higher Doses Are Equally Effective
Anthrax vaccine lower doses are found to be as effective as higher doses.
Researchers from the U.S. Centers for Disease Control and Prevention examined 1005 people who receive anthrax vaccine shots. They found that 3 shots per 6 months are quite enough to boost immune system, while the current recommendation is 4 shots per 6 month. Researchers are still examining dose differences and they expect to come up with a finding saying that 4 shots per 3.5 years can give the same results as 8 shots.
Researchers also found that muscle injection at the upper arm results in fewer adverse side effects than skin injection.
This is the largest study examining anthrax vaccine safety and efficiency and it is aimed at reducing the recommended number of shots and having the same level of disease protection.
Anthrax is an infection caused by Bacillus anthracis bacteria, which may result in serious health complications and even death. The bacteria is more dangerous when inhaled and it is being used as biological weapon, this is why all U.S. military members are being regularly vaccinated.
Currently, Emergent is the only anthrax vaccine (named BioThrax) supplier, but now the company is competing with PharmAthene to develop a safer and more effective vaccine.