The triple whammy of RSV, flu and COVID-19 has been felt in nearly 40% of U.S. households, according to a survey published Tuesday by the Kaiser Family Foundation.

Thirty-eight percent of those surveyed told the health policy think tank that someone in their household had been infected by one of the viruses in the previous month or so and the holiday season. The survey was conducted from Jan. 17-24.

Twenty-seven percent said someone had been sick with the flu, 15% said someone had been infected by COVID-19, and 10% said someone had RSV, or respiratory syncytial virus.

Health officials warned this fall that the “tripledemic” might overwhelm hospitals after early surges in flu and RSV cases added to the concern of yet another winter COVID wave.

Concerns about the circulating viruses caused nearly half of U.S. adults to alter their behavior, the survey found. Forty-six percent said they were more likely to take at least one protective measure — 31% said they are more likely to wear a mask in public, 26% said they are more likely to avoid large gatherings, 20% said they are less likely to travel, and 18% said they are less likely to eat indoors at restaurants. 

But uptake of the bivalent COVID-19 booster shots, available since September, remains sluggish. Nearly three in 10 (28%) surveyed said they have received the updated shots. That, however, is nearly twice the rate reported by the CDC (15.7%).

The Kaiser Family Foundation noted that the number of Republicans who say they’ve received the booster jumped from 12% in December’s survey to 20% in January. But there are still stark partisan disparities when it comes to the boosters. Sixty-two percent of Republicans or Republican-leaning adults said they believe they have enough protection from their earlier COVID-19 vaccine or a prior infection, compared to 43% of Democrats or Democratic-leaning respondents, the survey found. Twenty-seven percent of right-leaning adults said they think COVID is over, compared to just 6% on the left.

The good news is the worst of the tripledemic appears to be over.

According to the CDC, there were more than 280,000 new COVID-19 cases in the U.S. during the week ending on Feb. 1. That number was nearly 500,000 the week before Christmas. The totals are believed to be undercounts due to positive at-home tests not reported to health agencies. 

Nearly 500 Americans are still dying every day from COVID, according to CDC data.

Flu activity is on the decline as well, with the number of hospitalizations falling from around 4,000 the third week of January to fewer than 2,700 in the month’s final week, according to the CDC. But the agency estimates this flu season has resulted in 280,000 hospitalizations and 17,000 deaths.

RSV hospitalizations peaked in November at a rate five times higher than the previous year, CDC data shows. In a typical year, the virus kills 6,000 to 10,000 adults ages 65 and older and 100 to 300 children younger than 5.

Health officials said the rates of RSV, which infects most children by the time they are 2, were higher because the COVID-19 pandemic kept children inside where they weren’t exposed to the virus, leading to doctors seeing multiple years’ worth of cases this season.