The CDC has begun tracking omicron subvariant XBB, which is now estimated to account for 3.1 percent of U.S. cases. 

The pandemic spurred major setbacks in global efforts to eliminate measles, making the disease an "imminent threat" for every part of the world, the CDC and World Health Organization said Nov. 23.  

The nationwide surge of respiratory syncytial virus — now at a critical point as pediatric hospitals request additional beds — may be at or near its peak, Anthony Fauci, MD, told CBS News' Face the Nation on Nov. 27. 

Nearly 9 in 10 COVID-19 deaths in 2022 occur in people 65 and older, The Washington Post reported Nov. 28.

Heightened travel and indoor gatherings for Thanksgiving could accelerate the spread of respiratory viruses and magnify the threat of a "tripledemic" this winter, health experts told NPR in a Nov. 22 report.

The White House aims to reinvigorate national COVID-19 vaccination efforts through a six-week campaign announced Nov. 22. 

The World Health Organization will rename monkeypox "MPOX" in an effort to destigmatize the virus amid growing pressure from senior Biden administration officials, Politico reported Nov. 22. 

Although COVID-19 positivity rates are up, there have been fewer coinfections with other respiratory viruses than expected, according to recent findings from Helix, a lab that assists the CDC with variant tracking. 

HHS on Nov. 21 released an 88-page report on how the healthcare and public sector can best support the estimated 7.7 million to 23 million Americans living with long COVID-19.

The World Health Organization is convening more than 300 scientists to update its list of pathogens most likely to cause future outbreaks or pandemics. The priority pathogen list is meant to guide global investments, and research and development on vaccines and therapeutics. 

The UK Health Security Agency is investigating a possible case of Ebola in an individual with a travel history to Africa who was displaying "early symptoms" of the disease, according to a Nov. 17 report from The Telegraph. 

The majority of U.S. influenza cases detected this season have been H3N2, an influenza A variant associated with more severe illness. 

The CDC is projecting an increase in COVID-19 hospitalizations for the first time since July, national disease modeling shows. 

Omicron subvariants BQ.1 and BQ.1.1 — dubbed "escape variants" for their immune evasiveness — now account for 49.7 percent of U.S. COVID-19 cases, according to the CDC's COVID-19 data tracker weekly review published Nov. 18. 

Flu activity metrics are quickly ramping up in the US, with 8,707 lab-confirmed flu patients admitted to hospitals for the week ending Nov. 12, according to the CDC's latest FluView report. 

The CDC is sending a "small team" to Columbus, Ohio, to assist the region with investigating a measles outbreak that has now infected at least 24 children and hospitalized nine, according to CNN. 

After pediatric groups urged federal officials to issue a public health emergency over the nation's surge in respiratory viruses, the Biden administration said it is "ready to provide assistance" to communities in need of help, though did not specify whether it would take emergency action, NBC News reported Nov. 17. 

Health officials in central Ohio are investigating a measles outbreak that has infected at least 18 children, all of whom are unvaccinated, CBS News reported Nov. 16. 

The Children's Hospital Association and American Academy of Pediatrics are calling on federal officials to declare a national and public health emergency to free up resources and give hospitals more flexibility to respond to an "alarming surge of pediatric hospitalizations" from respiratory syncytial virus and flu.

Since omicron first appeared in the U.S. nearly a year ago, the variant has maintained dominance, splintering into an increasingly complicated patchwork of sublineages.