syndrome, diarrhea, vomiting, and headache. The study's authors concluded that until further evidence could be gathered on possible side effects from the hepatitis B vaccine, it may be worth only "giving the vaccine to people at high risk, rather than to all the population."
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The measles, mumps, rubella (MMR) vaccine is administered when the child is fifteen months old. Measles, mumps, and rubella are fairly innocuous childhood diseases. Good nutrition, clean sanitation, and proper medical care can prevent the side effects and complications such as hepatitis, convulsions, and meningitis that doctors always mention as a reason to choose the vaccine. Measles is indeed dangerous in Third World countries or in underprivileged communities with poor living conditions, sanitation, nutrition, and substandard health care. Vaccine-acquired immunity is questionable. In clinical studies, vaccinated children have been shown to contract these diseases when exposed to them.
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In the past, some researchers believed that having measles as a child helped the human immune system to mature, priming it to be more effective when dealing with challenges from viruses and bacteria later in life. Recovery from natural measles infection confers lifelong immunity, while vaccine-induced antibodies provide temporary immunity. In fact, the majority of severe complications arise when contraction of the disease occurs in vaccinated individuals. In adults, these diseases pose an elevated risk of complications and debilitating side effects.
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In addition, reactions that occurred immediately after the administration of a vaccine included encephalopathies (brain damage), aseptic meningitis, cranial nerve palsy, learning disabilities, and mental retardation.
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Chickenpox (Varicella Zoster)
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Reactions to the chickenpox vaccine, given at twelve months of age, include lesions on the body within four weeks of vaccination and fever of 102 degrees, upper respiratory infection, fatigue, disturbed sleep, diarrhea, vomiting, otitis media (ear infection), headache, hives, and febrile seizures. Because it contains live chickenpox virus, vaccine makers warn that vaccinated individuals potentially may be capable of transmitting the virus through close
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