Measles Finds Its Way Into California Sewage, Sparking Worry

California health workers have spotted measles virus in everyday wastewater, a sign that the disease may be spreading unnoticed. The Merced County Department of Public Health made the discovery, even though no confirmed sick people have been reported in that area. The state now counts 74 cases spread over seven counties, the highest number in seven years and more than double the total from last year. Most of those infected—about 96 percent—are either not vaccinated or their vaccination status is unknown. This shows gaps in immunity are the main reason the virus keeps moving, even though about 95 percent of kindergarteners in California receive their shots. Small groups that refuse vaccination allow the virus to jump from person to person.The rise in California is part of a national trend. Across the United States, measles cases, outbreaks, hospital stays and deaths have hit levels not seen in over three decades. Experts say the virus is still one of the most contagious worldwide, with a single infected person able to spread it to nine out of ten unvaccinated people in a closed setting. The virus can also stay airborne for up to two hours after the person leaves, increasing exposure risk. Alongside the outbreak, misinformation has spread online. During last year’s surge, poison control centers received many calls about children exposed to a popular supplement. Searches for “vitamin A and measles” or “cod liver and measles” spiked after comments from public figures like Health Secretary Robert F. Kennedy Jr. and podcaster Joe Rogan suggested these nutrients might help fight the virus. Health officials urge people to stay up‑to‑date on vaccinations and rely on trusted medical advice rather than unverified remedies.