Side effects While side effects of the<unk>  vaccine may occur, they are usually minor, including soreness, redness, and swelling around the point of injection, headache, fever, nausea or fatigue. Side effects of a nasal spray vaccine may include runny nose, wheezing, sore throat, cough, or vomiting. In some people, a<unk>  vaccine may cause serious side effects, including an allergic reaction, but this is rare. Furthermore, the common side effects and risks are mild and temporary when compared to the risks and severe health effects of the annual<unk>  epidemic. Guillain–Barré syndrome Although Guillain–Barré syndrome had been feared as a complication of vaccination, the CDC states that most studies on modern<unk> s have seen no link with Guillain–Barré. Infection with<unk>  virus itself increases both the risk of death (up to one in ten thousand) and the risk of developing Guillain–Barré syndrome to a far higher level than the highest level of suspected vaccine involvement (approximately ten times higher by 2009 estimates). Although one review gives an incidence of about one case of Guillain–Barré per million vaccinations, a large study in China, covering close to a hundred million doses of vaccine against the 2009 H1N1 "swine"<unk>  found only eleven cases of Guillain–Barré syndrome, (0.1 per million doses) total incidence in persons vaccinated, actually lower than the normal rate of the disease in China, and no other notable side effects. Egg allergy Fresh eggs being prepared for<unk>  production at Instituto Butantan Although most<unk> s are produced using egg-based techniques,<unk> s are nonetheless still recommended for people with egg allergies, even if severe. Studies examining the safety of<unk> s in people with severe egg allergies found that anaphylaxis was very rare, occurring in 1.3 cases per million doses given. Monitoring for symptoms from vaccination is recommended in those with more severe symptoms. A study of nearly 800 children with egg allergy, including over 250 with previous anaphylactic reactions, had zero systemic allergic reactions when given the<unk> e attenuated<unk>  vaccine. Other Several studies have identified an increased incidence of narcolepsy among recipients of the pandemic H1N1<unk>  ASO3-adjuvanted vaccine; efforts to identify a mechanism for this suggest that narcolepsy is autoimmune, and that the ASO3-adjuvanted H1N1 vaccine may mimic hypocretin, serving as a trigger. Some injection-based<unk>  vaccines intended for adults in the United States contain thiomersal (also known as thimerosal), a mercury-based preservative. Despite some controversy in the media, the World Health Organization's Global Advisory Committee on Vaccine Safety has concluded that there is no evidence of toxicity from thiomersal in vaccines and no reason on grounds of safety to change to more-expensive single-dose administration.
Influenza vaccine
Typhus vaccine
Measles vaccine
Polio vaccine
Hantavirus vaccine
MMR vaccine
Typhoid vaccine
Pertussis vaccine