Influenza vaccination coverage overall in the combined 2013–14 and 2014–15 seasons among adults aged ≥18 years was 43.8% and influenza vaccination coverage among bisexual adults (34.1%) was significantly lower compared with heterosexual (43.8%) and gay/lesbian adults (48.5%) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6405200/

Overall influenza vaccination coverage was significantly higher among gay/lesbian compared with heterosexual adults, but significantly lower among bisexual compared with gay/lesbian adults.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6405200/

Compared with heterosexual adults, a greater proportion of gay and lesbian adults reported having received at least 1 dose of COVID-19 vaccine,
https://jamanetwork.com/journals/jama/fullarticle/2789648

More than half of the sample (60.5%) reported receiving the influenza vaccine  https://www.japha.org/article/S1544-3191(19)30077-9/pdf