News brief

• The New York City Health Department has identified clade 1 mpox in a person who had recently traveled to Europe. This is the twelfth clade 1 case in the United States and the first identified in New York City. The city health department said the person was symptomatic, has received appropriate medical care, and has been isolating until full resolution of symptoms. Last year, the city recorded 398 cases of clade 2 monkeypox, a strain commonly transmitted between men who have sex with men. Clade 1 cases have been linked primarily to travel in Africa and are more severe than clade 2 infections. 
• More than 150 passengers and crew members contracted norovirus aboard Princess Cruises’ Star Princess during a weeklong trip from Fort Lauderdale, Florida, according to the Centers for Disease Control and Prevention (CDC). Princess Cruises said all illnesses were mild, and the staff practiced enhanced sanitation and isolation measures to protect passengers. Earlier this month, 76 passengers and crew aboard Holland America Line’s MS Westerdam experienced a suspected norovirus outbreak during an Asian trip. 
• Cambodia reported its second human H5N1 avian influenza case of the year in a 45-year-old woman from Ropai village, according to the Substack Outbreak News Today. The woman raised chickens and other birds and reported coming into contact with sick birds three days before symptom onset. The patient received Tamiflu and is under medical care. Cambodia has reported 36 human H5 infections since 2023, and the case-fatality rates of these infections are high, at greater than 40%. Most recent cases in Cambodia have involved a reassortant (2.3.2.1e) between an older H5N1 clade that has circulated in Cambodia since 2014 and the newer clade 2.3.4.4b virus that is circulating globally.