New frequency comb breathalyzer detects COVID-19 with excellent accuracy JILA researchers have upgraded a breathalyzer based on Nobel Prize-winning frequency-comb technology and combined it with machine learning to detect SARS-CoV-2 infection with excellent accuracy in 170 ... Science X

...Their achievement represents the first real-world test of the technology's capability to diagnose disease in exhaled human breath. Their study on this topic was published in the Journal of Breath Research.

CDC adds Covid-19 vaccinations to immunization schedules for children, adults The guidance formalizes current recommendations, and does not mandate vaccines. POLITICO

The Centers for Disease Control and Prevention added Covid-19 vaccinations for children, adolescents and adults to its immunization schedule.

Can you get COVID and the flu at the same time? And what about a cold or RSV? With all the illness spreading, it's virus soup out there these days. Some people feel so sick they're wondering if they're fighting more than one germ at once. NPR.org

... Yes, it can happen. There's plenty of evidence of people testing positive for, say, COVID and the flu or flu and RSV simultaneously.