Vaccine Safety Issues

Do Vaccines Cause Asthma?

Conclusion Natural infection with influenza can contribute to asthma exacerbation. Thus, influenza vaccine prevents asthma exacerbation by protecting against natural infection. Influenza vaccines do not

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Do Vaccines Cause Ataxia?

Conclusion Natural mumps and varicella infections are associated with acute cerebellar ataxia. Thus, mumps and varicella vaccines prevent ataxia by protecting against natural infection. Vaccines

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Do Vaccines Cause Autism?

Conclusion Childhood vaccines do not cause autism. Maternal vaccines have not been shown to cause autism. The Institute of Medicine (IOM), now called the National Academy of Medicine (NAM),

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Do Vaccines Cause Bell’s Palsy?

Conclusion Natural infections with varicella, tetanus and diphtheria have each been associated with Bell’s Palsy. Thus, varicella, tetanus and diphtheria vaccines prevent Bell’s Palsy by

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Do Vaccines Cause Diabetes?

Conclusion Vaccines currently routinely recommended to the general population in the U.S.* do not cause diabetes. Epidemiological Evidence The 2012 report by the Institute of Medicine (IOM)

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Do Vaccines Cause Hepatitis?

Conclusion Natural infection with hepatitis viruses is known to cause hepatitis disease. Natural infection with measles, mumps, rubella and varicella viruses have also been associated

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Do Vaccines Cause Herpes Zoster?

Conclusion Varicella vaccines can rarely cause herpes zoster due to vaccine-strain viral reactivation. Other vaccines currently routinely recommended to the general population in the U.S.* do not cause vaccine-strain

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Do Vaccines Cause Multiple Sclerosis?

Conclusion Influenza vaccines do not cause multiple sclerosis (MS). Other vaccines currently routinely recommended to the general population in the U.S.* have not been shown to cause MS. Epidemiological

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Do Vaccines Cause Narcolepsy?

Conclusion The AS03-adjuvanted 2009 pandemic H1N1 influenza vaccine (trade name: PandemrixTM) was associated with an increased risk of narcolepsy in several northern European countries. In

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Do Vaccines Cause Seizures?

Conclusion Fever is a common symptom of many natural infections, including bacteria such as diphtheria, pertussis, meningococcus and pneumococcus, and viruses such as hepatitis A,

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Do Vaccines Cause Syncope?

Conclusion Vaccines currently routinely recommended to the general population in the U.S.41F* can rarely cause syncope up to an hour after vaccination, most frequently among

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