I recieved a question from someone about having a reaction to a H1N1 flu shot. I advise the person to contact their Doctor but I have also posted some common reactions to the vaccine.

Swine Flu Vaccine Side Effects
Preliminary Safety of H1N1 Flu Shots Reported
Sep 19, 2009 Megan Doyle

Recently released reports detail common side effects experienced by recipients of the vaccines recently approved by the FDA for the prevention of the swine flu.

The FDA has approved four vaccines for the prevention of swine flu. Recent preliminary reports from clinical trials of these vaccines have described common side effects encountered by participants. The first of the preliminary reports published is from a continuing study in Australia, where researchers are testing an inactivated H1N1 vaccine developed by CSL Ltd. in a group 240 volunteers. Following injection, 90% of recipients achieved a strong immune response within three weeks, a sign that the vaccine is working. Participants reported side effects that they experienced within 7 days. Another study tested an H1N1 vaccine developed by Novartis Pharmaceuticals with and without an oil-in-water adjuvant, known as MF29 in 175 adults.

Local Side Effects from Approved H1N1 Vaccines
No deaths or serious adverse events have been reported from any swine flu vaccine. Approximately 44% of participants reported mild side effects within 7 days of receiving the first dose of CSL’s swine flu vaccine. 2.5% of vaccine recipients reported moderate local side effects, and there were no severe adverse events reported after immunization. 86% of the volunteers that received Novartis’s H1N1 vaccine reported adverse reactions after one or both doses – the most common local side effect experienced was injection site pain. The reactions were generally mild or moderate and resolved after 72 hours. Reported local adverse events, or side effects occurring at the location where either vaccine had been administered, include the following:

Tenderness
Pain
Redness
Hardening of skin
Swelling
Bruising
Common Systemic Side Effects from Swine Flu Vaccines
Systemic effects were also reported by CSL and Novartis vaccine recipients. Approximately 36% of volunteers that received the swine flu vaccine manufactured by CSL experienced mild systemic side effects. 8% of vaccine recipients reported moderate systemic side effects, and less than 1% experienced a severe adverse reaction to immunization. Severe side effects reported include, malaise, muscle pain, and nausea. Muscle aches were the most common systemic side effect reported by participants receiving the H1N1 vaccine produced by Novartis, and no severe systemic side effects were reported. The following are common whole-body side effects occurring in response to either H1N1 vaccination.

Headache
Malaise (feeling out-of-sorts)
Muscle pain
Chills
Nausea
Fever
Vomiting
In addition, researchers evaluated the occurrence of select adverse events including neurologic (e.g. Guillain-Barre syndrome), immune system or other serious reactions. According to the studies, none of the enrolled participants experienced these select events.

The National Institutes of Health (NIH) has also recently released preliminary safety information for an additional swine flu vaccine manufactured by Sanofi Pasteur Inc. Approximately 96% of healthy adults showed a robust immune response after receiving the vaccine. The only adverse events reported by trial participants were pain and redness at the injection site.

Read more at Suite101: Swine Flu Vaccine Side Effects: Preliminary Safety of H1N1 Flu Shots Reported http://diseases-viruses.suite101.com/article.cfm/swine_flu_vaccine_side_effects#ixzz0d5aCZD23