Massachusetts January 3, 2023 1:35 pm COVID Q&A: Is XBB Contributing to Rising Wastewater Levels? Top Boston doctors talk about what could be causing the biggest spike in COVID-19 wastewater levels Massachusetts has seen in a year during NBC10 Boston’s weekly “COVID Q&A” series. US & World Videos 3:50 Obesity expert discusses new proposal for U.S. dietary guidelines 4:41 Parents sue over AI chatbot they say encourages children to harm themselves and others 1:32 Patriots host annual children's holiday party 2:48 Hate grocery shopping? Robots could soon do it for you 2:08 Lawrence Fire Department's ‘Station 8' uses music to teach safety to kids