The number of US vaping illnesses has jumped again, reaching more than 1,800 cases.
The US Centers for Disease Control and Prevention said Thursday that 1,888 confirmed and probable cases have been reported in 49 states. That includes at least 37 deaths in 24 states, as of Tuesday.
An additional death was also reported in Massachusetts Wednesday.
The total is 284 higher than what the government reported last week and a larger increase than seen in several weeks. Officials say the previous slowdown could have been caused by reporting delays.
The outbreak appears to have started in March. No single ingredient, electronic cigarette, or vaping device has been linked to all the illnesses. Most who got sick said they vaped products containing THC, the high-inducing ingredient in marijuana.
Health officials urge people to avoid vaping, particularly products containing THC and purchased off the street.