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What you need to know: how MPX spreads and how to prevent it


MPX vaccine updates

The JYNNEOS vaccine is a live attenuated virus that is considered safe and effective at preventing the onset of disease and severity of illness after exposure to monkeypox. It is most effective within 4 days of exposure but can be given 4-14 days after exposure to help decrease disease severity. Full vaccination requires 2 doses at least 28 days apart and a person is not considered fully vaccinated until 2 weeks after their second dose. Although a 28-day interval is optimal, there is no need to restart or add doses to the vaccine series if the second dose is given after 28 days. As of September 2, 2022, there is adequate supply of the vaccine in the East Bay to give second doses.

Where to get the vaccine in Alameda County:

Oakland LGBTQ Center: Men who have sex with men (MSM), gay men, bisexual men, pansexual men, transgender and GNC individuals, and sex workers are encouraged to get vaccinated: click here for vax registration.  Appointments for Monkeypox vaccinations will be held weekly on Tuesdays and Fridays and at special mass vax events.

  • Location: Directly across from the Oakland LGBTQ Center and the T-Mobile store, at the corner of Lakeshore and Lakeside, beneath the 580 overpass at 533 Lake Park Ave. Please click for more information.
  • The mass vax clinic option offers a quicker opportunity to get vaccinated. Please click to register.
  • Next mass vax clinic: 9/25, 10am-2pm

Steamworks: Steamworks in Berkeley is offering Monkeypox vaccine pop-up clinics for those who are eligible. Please check their Instagram account here.

Kaiser: Kaiser members who are Alameda County residents who get their care at the Oakland Medical Center can call 510-225-8233.  Kaiser members who get their care at Kaiser Fremont and San Leandro can call 510-454-2780.

AHF Oakland Wellness Center:

  • AHF Oakland Wellness offers 1st and 2nd doses of MPX Vaccine on specific vaccine clinic days.
  • Located at 238 E 18th Street in Oakland, inside the Out of the Closet Thrift Store. 
  • For more info, contact Zack Pittman at Zackery.Pittman[at]ahf.org

Asian Health Services: AHS is offering monkeypox vaccine on:

  • Mondays from 10 – 12PM: Clinton Park, 655 International Blvd., Oakland, CA 94606
  • Fridays from 10 – 12PM: Madison Park, 810 Jackson St., Oakland, CA 94607

Other potential vaccine options: please contact your healthcare provider or occupational health department if you are eligible for the monkeypox vaccine. If you do not have a healthcare provider, please contact monkeypox@acgov.org

Who is eligible in Alameda County:

ACPHD recommends intradermal administration as the preferred route of administration of JYNNEOS vaccine. Vaccination sites run by Alameda County staff and contractors will allow all minors 12 to 17 years of age to receive the JYNNEOS vaccine without parent/guardian consent.

ACPHD recommends that the following persons receive JYNNEOS vaccine:

  • All gay and bisexual men, transgender people, or men who have sex with men.
  • Sex workers of any sexual orientation or gender identity. 
  • Persons who have had close contact within the past 14 days with someone with suspected or confirmed monkeypox.  
  • Persons who had close contact with others at a venue or event or within a social group in the past 14 days where a suspected or confirmed monkeypox case was identified. This includes persons who received notice from a venue or event of a potential exposure within the past 14 days.
  • Laboratory workers who routinely perform monkeypox virus testing.
  • Clinicians who have had a high-risk occupational exposure (e.g., examined monkeypox lesions or collected monkeypox specimens without using recommended personal protective equipment). 

Second Doses of JYNNEOS

  • Second doses of JYNNEOS vaccine should be administered to anyone who received a first dose at least 28 days prior. Although a 28-day interval is optimal, there is no need to restart or add doses to the vaccine series if the second dose is given after 28 days.
  • Persons with moderate to severe immunosuppression should receive their second dose no later than 35 days after their first dose.
  • Persons 18 and older who received their first dose subcutaneously may receive a second dose intradermally.
  • Persons diagnosed with MPX after their first dose are not recommended to receive the second dose (unless they are immunocompromised), because MPX infection likely confers additional immune protection.

Where to get the vaccine in Contra Costa County:

In Contra Costa County, schedule your MPX vaccine appointment here or call 1-833-829-2626.

Second doses of MPX vaccine are available to individuals if it has at least been 28 days since someone got the first dose.

Ongoing vaccine clinics via Contra Costa Health Services:

  • Concord Monument at 1034 Oak Grove Rd, Concord
    • Every Tuesday: 12-3:30PM & 4:30-7PM
  • Richmond Auditorium at 403 Civic Ctr Plaza, Richmond
    • Every Wednesday – Saturday: 8-12PM & 12:30-3PM

Community vaccine clinics on:

  • Thurs, 9/22 – Club 1220, 1220 PINE ST, WALNUT CREEK, (200 available)
  • Fri, 9/23 – Rainbow Community Center, 2380 Salvio St, Ste 301, Concord (free parking garage 1 block west) (150 available)
  • Thurs, 9/29 – Concord Planned Parenthood, 2185 Pacheco St, Concord (150 available)
    • 9AM – 1PM
  • Sat, 10/1 – Danville Town Offices, 510 LaGonda Way, Danville (150 available)
    • 9AM – 2PM

Who is eligible in Contra Costa County

Contra Costa Health (CCH) prioritizes vaccine for community members who have potential exposures to someone with MPX virus or are at high risk of exposure to MPX virus, including:

  • Gay, bisexual, and other men or trans people who have sex with men.
  • Sex workers of any sexual orientation or gender identity.
  • Persons who had close contact within the past 14 days with someone with suspected or confirmed monkeypox.
  • Persons who had close contact with others at a venue or event or within a social group in the past 14 days where a suspected or confirmed MPX case was identified. This includes persons who received notice from a venue or event of a potential exposure within the past 14 days.

CCH recommends that anyone who has had a potential exposure to MPX or meets one or more of the criteria above get vaccinated.


Alameda County MPX update (September 8, 2022):

Monkeypox (MPX) virus transmission continues in the Bay Area. As of September 7, 2022, there have been 198 reported MPX cases among Alameda County residents and more than 4,140 cases in California. Although anyone can get MPX, most local cases reported to date are among gay and bisexual men and other men who have sex with men. There have been only 14 confirmed MPX cases in the pediatric population (< 18 years of age) in California as of 9/6/22.

Persons with MPX in the current outbreak may not present with prodromal symptoms (e.g., fever, headache, lymphadenopathy, fatigue), but nearly all have a characteristic rash which typically begins as maculopapular lesions that then progress to form vesicles, pustules, and scabs.

As of September 2, 2022, there is adequate supply of the vaccine to give second doses.

Contra Costa County MPX Situation Update

Contra Costa Health Services, along with the California Department of Public Health (CDPH) and other agencies, are monitoring a growing outbreak of monkeypox cases in the United States and California. Visit the CDPH monkeypox tracking page f​or the latest information about confirmed or suspected cases of monkeypox in the county.

While it is good to stay alert about any emerging public health outbreaks, the current risk of getting monkeypox in the general public is very low, outside of certain activities that increase the chance of exposure.


MPX treatment updates

Most MPX infections are mild and will heal without treatment.

Tecovirimat (TPOXX) treatment may be recommended for persons who are more likely to get severely ill, for persons who are experiencing severe illness, or persons who have rash and sores in areas with high risk for severe complications, such as eyes or genitals. People who may be at risk for more severe illness include those with a weakened immune system, children under 8 years of age, persons who are pregnant or breastfeeding, and persons with a history of certain skin diseases like eczema.

For people in Alameda County, if TPOXX is not available at your clinic’s pharmacy, providers may send prescriptions to the EBAC pharmacy or refer patients to be seen at the Summit ED.


Resources for community members and organizations:

Alameda County Public Health Department: Information on Monkeypox

Alameda County Public Health Department: Clinical Guidance on Monkeypox

What is monkeypox?
¿Qué es la viruela del mono?

Communications resources and toolkits: