Infections

• Il CDC ha confermato 51 ulteriori casi di morbillo, portando l'epidemia nazionale negli Stati Uniti a 1.893 infezioni al 16 maggio 2026. • L'agenzia ha dichiarato che tutti i casi, tranne nove, sono stati acquisiti localmente, sono stati segnalati 27 focolai quest'anno e il 92% dei pazienti non era vaccinato o aveva uno stato vaccinale sconosciuto. • L'epidemia è significativa poiché il morbillo si diffonde rapidamente nelle comunità sottoposte a vaccinazione insufficiente, e gli Stati Uniti sono ora inI linea per superare i 2.288 casi dello scorso anno se la trasmissione continuerà.

• Researchers analyzed invasive Escherichia coli samples from newborns at a US pediatric hospital, finding increasing resistance to first-line sepsis antibiotics. • Ampicillin nonsusceptibility rose from 46% in 2006-2013 to 61% in 2014-2021, with 54% overall; gentamicin nonsusceptibility affected 11% of isolates. • Cefazolin resistance as alternative therapy surged from 8% to 36%, reported today in Open Forum Infectious Diseases, signaling urgent treatment challenges.

• CDC reports rotavirus circulating at high levels nationwide, with 73.8% of US children vaccinated against the highly contagious virus causing severe diarrhea in infants. • Health experts attribute the late-season surge to vaccine hesitancy, noting the Trump administration's past efforts to remove rotavirus vaccine from childhood schedules. • Cases are life-threatening for kids, prompting warnings as emergency room visits remain elevated beyond typical seasonal peaks.

• The US measles case count increased by 43 cases last week to 1,714 total, according to the CDC's weekly update released April 10, 2026. • More than half of the new cases occurred in Utah, marking a smaller jump compared to the prior week's 96-case increase. • This ongoing outbreak highlights gaps in vaccination coverage amid public health concerns over declining immunization rates.