For example, many are against it due to religious preferences. Along with religious reasoning, parents openly state that they simply don't believe doctors have their children's best interests in mind. The religious aspect comes from the concept of not believing that the disease exists so they see no reason why their children should be vaccinated, because if the disease does not exist the vaccines are useless. For example, Christian scientists claim that through prayer everything will be healed. Just like Christian Scientists, Jehovah's Witnesses do not believe in many aspects of the medical field such as blood transfusions and vaccinations. Jehovah's Witnesses say this is a violation of the law of their God, yet they strongly recommend the hepatitis vaccine. The Congregation of Universal Wisdom and the Imams of northern Nigeria prohibit vaccinations at all costs. As for those who forgo vaccinations because they don't trust doctors in their children's best interests, they argue that there is a hidden agenda behind vaccinations. The presumed goal behind vaccinations is sterility. For example, many Muslims believed that vaccines were an American plan to make them sterile with the goal of wiping out all Muslims. The Taliban also kidnapped, beat and murdered officials responsible for vaccines