Top news
All coverage
CDC mask decision followed stunning findings from Cape Cod beach outbreak
By Anne Flaherty & Arielle Mitropoulos
What the CDC's 'substantial' and 'high' levels of Covid-19 transmission actually mean
By Jessica Firger & Eric Levenson
Covid clusters among the vaccinated are killing our back-to-normal dreams
By Antonio Regalado
CDC mask guidance made easier: Check this county COVID risk map : Shots - Health News
By Ruth Talbot, Selena Simmons-Duffin & Thomas Wilburn
8 Things to Know About Breakthrough COVID Infections
By Rachel Nania
CDC Calls for Return to Universal Masking in Schools
By Sarah D. Sparks
CDC study shows three-fourths of people infected in Massachusetts coronavirus outbreak were vaccinated but few ...
By Carolyn Johnson, Yasmeen Abutaleb & Joel Achenbach
CDC: Delta as contagious as chickenpox | CIDRAP
By Stephanie Soucheray
CDC wants vaccinated Americans to wear masks indoors in Covid hot spots
By Adam Cancryn & Erin Banco
Breakthrough COVID infections show ‘the unvaccinated are now putting the vaccinated at risk’
By Laura Santhanam
Timeline: CDC mask guidelines during the COVID pandemic
By Deborah Netburn
COVID-19 Vaccine Breakthrough Cases: Data from the States | KFF
By Josh Michaud, Jennifer Kates & Anna Rouw
CDC recommends the vaccinated wear masks in areas with low vaccination rates
By Lauren Egan, Meg Tirrell & Laura Strickler
CDC warns in internal document that 'war has changed' with the coronavirus
By Sara G. Miller, Akshay Syal & Jason Abbruzzese
CDC under fire for decision to limit tracking of Covid-19 cases in vaccinated people
By David Lim & Rachel Roubein
About 99.999% of fully vaccinated Americans have not had a deadly Covid-19 breakthrough case, CDC data shows
By Deidre McPhillips & Christina Maxouris
CDC's new masking guidance prompted by science that emerged in just the last several days, Walensky says
By Madeline Holcombe & Jason Hanna
CDC updates guidance, recommends vaccinated people wear masks indoors in certain areas
By Jacqueline Howard
CDC shares 'pivotal discovery' on Covid-19 breakthrough infections that led to new mask guidance
By Michael Nedelman
CDC reverses indoor mask policy, saying fully vaccinated people and kids should wear them indoors
By Berkeley Lovelace & Berkeley Lovelace Jr.
CDC study shows 74% of people infected in Massachusetts Covid outbreak were fully vaccinated
By Berkeley Lovelace & Berkeley Lovelace Jr.
Should you be wearing a mask again? Here's a map of the Covid hot spots subject to the CDC's new guidance
By Nate Rattner
Vaccinated People With Breakthrough Infections Can Spread The Delta Variant, CDC Says
By Laurel Wamsley
As Covid Cases Rise All Over U.S., Lower Vaccination Rates Point to Worse Outcomes (Published 2021)
By Lauren Leatherby
C.D.C. Internal Report Calls Delta Variant as Contagious as Chickenpox (Published 2021)
By Apoorva Mandavilli
'The war has changed': Internal CDC document urges new messaging, warns delta infections likely more severe
By Carolyn Johnson, Yasmeen Abutaleb & Joel Achenbach
CDC urges vaccinated people in covid hot spots to resume wearing masks indoors
By Dan Diamond, Adam Taylor & Yasmeen Abutaleb