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COVID-19
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When You Need to Wear a Mask

Wearing masks is strongly urged in indoor settings and required in certain high-risk settings.

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Where Everyone Needs to Mask
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Health Officer Orders

Order Rescinding Masking Mandate (22-03)
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Resources

Face Masking Resources

COVID-19 continues to circulate in our communities and poses a risk especially for those who are not fully vaccinated against the virus. When people wear a mask correctly, they protect others as well as themselves.

Health officials urge everyone 2 years of age and older to wear a mask, regardless of their vaccination status, in most indoor public settings and businesses.

Some people should not wear a mask, such as children younger than 2 and people with certain medical conditions or disabilities.

Where everyone, regardless of vaccination status, MUST wear a mask

  • Indoors when required by businesses, government offices, youth-serving facilities, and workplace settings
  • When required by train, bus, ferry, taxis and ride-share operators
  • Indoors in transportation hubs like bus terminals, train stations, marinas, seaports or other ports, subway stations, or any other area that provides transportation when required by transit systems
  • Healthcare settings
  • State and local correctional facilities and detention centers
  • Shelters and cooling centers
See California's When to wear a mask

Recommendations

Wearing masks is strongly urged in indoor settings and required in certain high-risk settings.   You may choose to wear a mask in outdoor crowded settings, and in non-public indoor settings, like a private residence, when you are around people who may be unvaccinated, elderly, or immunocompromised. While fully vaccinated people are well-protected from severe illness due to variants of the virus that causes COVID-19, they may get asymptomatic or mild infections. To protect everyone, wear a mask to help slow the spread of the virus.

Resources

  • California’s Face Masking Guidance
  • Get the Most Out of Masking
  • California’s Vaccine Record Guidelines and Standards
  • California’s Face Masking FAQ
  • CDC Guidance for using masks
  • CDC Science Brief: Community Use of Masks to Control the Spread of SARS-CoV-2
  • CDC Guidance for N95 Respirators
  • Find Free N95 Masks
  • Masks Required for Entry Posters: English | Arabic | Burmese | Dari | Farsi | Hindi | Khmer | Korean | Mongolian | Pashto | Punjabi | Spanish | Tagalog | Tigrinya | Traditional Chinese | Vietnamese
Alameda County Health Care Services Agency Public Health Department Coronovirus COVID-19
  • 510.268.2101
  • emailncov@acgov.org

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  • Schools/Childcare
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  • Community Resources
  • Response Updates
  • News & Media
  • Contact Us
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