BQ and XBB present “serious threats to the efficacy of current COVID-19 vaccines,” according to a Columbia study. A University of Texas Medical Branch study came to similar conclusions, finding “low” neutralization of BQ.1.1 and XBB from the updated booster. The new shot is an enhanced version of the COVID-19 vaccine that targets both the original virus and omicron. But compared to its protection against the omicron BA.5 subvariant, the bivalent booster is four times less effective against the BQ.1.1 subvariant and eight times less effective against the XBB subvariant, said Chaitanya Kurhade, an author of the study.

Town Square with Ernie Manouse featured Dr. Jeff Temple for the full hour discussing how to deal with holiday stress and depression. He also answered questions about his research on how the pandemic affected adolescents’ mental health.

Eastern equine encephalitis is a rare virus that has a death rate of 30 percent among infected people, said Scott Weaver, director of the University of Texas Medical Branch Institute of Human Infections and Immunity. Although the virus has been detected in Galveston County before, people should be especially vigilant now because Aedes sollicitans, also known as the eastern saltmarsh mosquito, is especially prevalent among the recent swarms, Weaver said.

Researchers at the University of Texas Medical Branch in Galveston are looking into the effects of the pandemic on young people's mental health. Jeff Temple, founder of the UTMB Center For Violence Prevention, said a mental health crisis among young people already existed before the pandemic. Students are growing up in a world with a climate crisis, school shootings, geopolitical strife, toxic social media, "and these kids aren’t stupid, they see that," Temple said.

“People are sick of hearing about COVID. So are we!” Drs. Megan Berman and Richard Rupp wrote in the latest Vaccine Smarts column. “But the truth is, the virus is not sick of us, and it’s not going anywhere. There has been nearly a 30 percent increase in COVID hospitalizations among elderly adults in the past two weeks. You should be aware of new information.”

“There is a dangerous misconception out there concerning repeat infections with COVID,” wrote Drs. Norbert Herzog and David Niesel in their Medical Discovery News column.

A couple of recent studies support the health benefits of short bursts of exercise reducing cardiovascular and cancer risk up to 40 to 50 percent. You might think of them as exercise snacks, Dr. Victor Sierpina suggested.

COVID shots designed to protect against the omicron variant trigger a weaker immune response against the rapidly emerging BQ.1.1 subvariant than the previously dominant strain, according to a new lab study. Scientists at the University of Texas Medical Branch, in a study published online Tuesday in Nature Medicine, found that the booster shots performed well against the BA.5 subvariant they were designed to target. But the boosters did not trigger a robust response when faced with BQ.1.1, the scientists found. Antibodies were about four times lower against BQ.1.1 compared with BA.5. These neutralizing antibodies prevent the virus that causes COVID-19 from invading human cells. Many other media organizations reported this news.

The National Institute of Mental Health has awarded the UTMB team with a $3.5 million grant to continue following adolescents for five more years, offering the researchers a rare chance to uncover the short- and long-term impacts of the COVID-19 pandemic on teenage mental, social and behavioral health. “We’ll be able to do that in a really unique way because we serendipitously had this data from before the pandemic,” said Dr. Jeff Temple. “So we can actually see the effects the pandemic had on these kids.”

The prevalence of sexting and its spread to younger ages reflects how widespread cellphone use is and how easy it is to send explicit images, said Jeff Temple, an expert in adolescent health and social media whose 2011 research popularized the term “sexting.” “The fact that 17-year-olds, 16-year-olds, 15-year-olds are sexting is not a surprise,” he said. “If we had phones back in the 1400s, those same ages would be sexting as well.”