It is speculated that this increase in reported cases of whooping cough and measles is directly attributed to people refusing to immunize their children. While most parents vaccinate their children at the required age to receive them, there are some who are against any vaccination. In Dr. James Howenstine's article, “Why You Should Avoid Getting Vaccines,” he discusses some of the reasons why parents don't get vaccinated. Explains why parents should not get vaccinated due to the possible harmful effects of vaccinations due to the chemical composition present in some of these vaccines. He is also reluctant to believe in their effectiveness stating that vaccinated individuals could still contract the disease for which they were vaccinated. Some diseases do not require a vaccine because they are not serious enough, such as influenza or chickenpox. He even claims that the government is administering and mandating vaccines only for the purpose of making a profit. People who oppose vaccinations also believe that vaccines actually destroy the immune system making the body more susceptible to other diseases such as cancer, autoimmune diseases, and SIDS.