vaxxter,com
Senior woman getting a vaccination from the doctor. Isolated on white.
It’s interesting to see how much time and money is spent researching influenza and influenza vaccines. A quick search of PubMed for “influenza vaccine” returns 8,062 results; narrowing the search by adding “elderly,” 3,442 results were returned. In January 2017, another study on the use of high-dose flu shots in the elderly was published in the journal, VACCINE. The current meta-analysis included 16 studies – after 2,289 records, 323 abstracts and 233 full-text articles had been excluded.
No one seems to know how long antibodies persist after an influenza infection or after an influenza vaccine. A study by Young, et.al. mentions research done in Spain (2008) that found vaccine effectiveness – meaning antibody levels –declined from 61% in the first 100 days after vaccination to 42% between days 100 to 119, to no antibody levels detected after 120 days. An influenza antibody