Over 160,000 people this season have landed in the hospital from flu complications, CDC estimates. More than 6,600 have died. Here are the symptoms.

A CDC official, John Nkengasong, MSc, PhD, sent a memo to senior leaders at the agency on Sunday night telling them that all staff who work with the WHO must immediately stop thei

Meanwhile, the Trump Administration has ordered the CDC among other health organizations to pause external communication at least until the end of the month.

The flu vaccine is generally about 40% effective at completely preventing influenza, according to Blumberg. The flu vaccine protects against three strains of influenza, including two influenza A strains. It also protects against influenza B, which typically shows up later in the season, Blumberg said.

Bird flu is a disease caused by avian influenza A viruses, according to the CDC. The virus mostly spreads between birds and dairy cows, but there have been 67 human cases of bird flu nationwide and one death tied to the infection since 2024, CDC records show.

The CDC has confirmed a positive bird flu case in a child in San Francisco, the second juvenile case of H5N1 in the country.

Experts said the sudden stoppage was a surprise and would set back work on investigating and trying to stop outbreaks and brewing global threats.

A Centers for Disease Control and Prevention communication delay could hinder coordinating responses at the state and local levels.

US public health officials have been told to stop working with the World Health Organisation, effective immediately.

NWS Los Angeles Meteorologist-in-Charge Ariel Cohen joins FOX Weather to talk about the recent impacts of rainfall in areas of Southern California burned by recent wildfires.

The Trump administration has paused public communications from health agencies, causing concern for California's ability to respond to the avian flu outbreak.