Mpox (formerly Monkeypox)

Information for CHA patients and the general public

Mpox (Monkeypox) is a disease of ongoing concern in the U.S. and Massachusetts.

What does mpox look like? Mpox shows up as a rash or lesions usually after flu-like symptoms. The rash may look like pimples or blisters in the genital area or all over the body.

How does it spread? Anyone can get mpox. It is spread by close physical contact, often during sex or intimate relationships, or by touching someone who has lesions. Please see the CDC website for more about how the disease is spread.

Who is at high risk? The overall risk is low, unless you’ve had multiple sex partners recently or have touched someone who has mpox. Note: It’s harder to get mpox than other diseases like COVID. You cannot get it by passing someone in the supermarket who has it.

Mpox Vaccine Update

As of August 26, 2024, Mpox vaccine is temporarily unavailable at CHA. Please visit the MA-DPH website for other locations where you can receive the vaccine.

How to get a Vaccine

Mpox vaccine is available by appointment for CHA patients only at the Zinberg clinic at Cambridge Hospital.

Please contact your CHA care team to schedule a Mpox vaccination appointment at CHA.

Please note: Parental consent is required for minors.

About the Vaccine

CHA is giving the JYNNEOS vaccine (also known as Imvamune or Imvanex). This has been licensed by the U.S. Food and Drug Administration (FDA).

The vaccine is approved as a two-dose series, with the second dose 28 days after the first dose.

After you get a vaccine, you will have to wait 15 minutes before leaving. Please plan accordingly.

If you think you have been exposed or you have new sores, a rash or lesions:

Call your CHA primary care office to discuss your care.

If you or a member of your household has mpox

Please see the CDC guidelines for isolating and living with someone who has mpox.

Third party site: