Many Long Island and New York City residents are unwilling to get vaccinated or adjust their holiday plans amid a “tridemic” of Covid-19, the flu, and respiratory syncytial virus (RSV), results from a new poll suggest.

Less than two-thirds of the poll respondents have received a flu shot or a Covid-19 booster shot this season. Sixty percent of respondents said they have little concern mingling in large groups, and 36% plan to attend a large holiday gathering. In addition, 93% do not plan to change their holiday plans despite the simultaneous spread of Covid, flu, and RSV.

According to the U.S. Centers for Disease Control and Prevention, there have been at least 8.7 million flu cases, 78,000 flu hospitalizations, and 4,500 flu deaths this season, a significant increase from the same time last year. 

The poll also showed that residents were unaware of the “tridemic”: 8% of respondents have “heard a lot” about it, while 31% have “heard some,” 27% have “not heard much,” and 30% have “heard nothing.” 

Doctors noted that RSV can be dangerous for young children and older adults. Though there is no vaccine for the disease, the public should take measures such as washing hands, disinfecting high-touch surfaces, coughing and sneezing into the arm, and staying home if symptoms arise.

Protection against these diseases also helps to prevent pneumonia, which can be a complication of the flu virus and kills about 60,000 Americans annually, experts say.