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Type A influenza vaccine is for the prevention of infection of influenza A virus and also the influenza-related complications. Different monovalent type A influenza vaccines have been developed for different subtypes of influenza A virus including H1N1 and H5N1. Both intramuscular injection or intranasal spray are available on market. Unlike the seasonal influenza vaccines which are used annually, they are usually used during the outbreak of certain strand of subtypes of influenza A. Common adverse effects includes injection site reaction and local tenderness. Incidences of headache and myalgia were also reported with H1N1 whereas cases of fever has also been demonstrated with H5N1 vaccines. It is stated that immunosuppressant therapies would reduce the therapeutic effects of vaccines and that people with egg allergy should go for the egg-free preparations.
References
- ↑ "About the Global Influenza Programme". who.int. Archived from the original on October 3, 2011. Retrieved 25 May 2020.
- ↑ Alan J Hay; John W McCauley (2018). "The WHO global influenza surveillance and response system (GISRS)—A future perspective". Influenza and Other Respiratory Viruses. 12 (5): 551–557. doi:10.1111/irv.12565. PMC 6086842 . PMID 29722140.
- ↑ Monto, Arnold S. (2018). "Reflections on The Global Influenza Surveillance and Response System (GISRS) at 65 Years: An Expanding Framework for Influenza Detection, Prevention and Control". Influenza and Other Respiratory Viruses. 12 (1): 10–12. doi: 10.1111/irv.12511 . PMC 5818347 . PMID 29460424.
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