Centers for Disease Control and Prevention, CDPHE, and local public health officials are currently monitoring cases of monkeypox in the United States. 

Monkeypox is a virus. It is in the orthopox family of viruses, which also includes smallpox. Monkeypox is rare, but it can be serious for people who get sick. 

Monkeypox can spread from person to person when someone who has monkeypox has close contact with someone else. Close contact can mean physical contact with a sick person’s sores, bumps or lesions or prolonged, face-to-face interaction with someone who is sick. Close contact includes sexual contact. Monkeypox can also spread through touching the bed linens or clothing of someone who is sick. Monkeypox can also live on other surfaces for some time.

Recent cases in the United States have been infected through person-to-person contact. Brief interactions without physical contact are unlikely to result in getting the virus.

Monkeypox has recently been spreading in parts of the United States, Canada, Europe, and Australia. It is endemic in central and west Africa. Recent data suggest people who have recently traveled to a country where monkeypox has been reported or men who have sex with other men are at heightened risk.

The type of monkeypox spreading in the United States is rarely deadly and has a fatality rate of less than 1%. In fact, in most cases, monkeypox will resolve on its own. Symptoms of monkeypox may begin with flu-like symptoms that can include fever, headache, muscle aches, swollen lymph nodes, and exhaustion. Typically a rash or skin bumps develop within one to three days after the onset of fever, often beginning on the face then spreading to other parts of the body. 

Monkeypox can look like syphilis, herpes, blisters, or even acne, so be sure to get checked out if you develop a new rash or bumps. In recent cases, additional symptoms have not always occurred before the rash or bumps if they have occurred at all. The incubation period for monkeypox is usually seven to 14 days, but can range from less than five to 21 days. Most people recover within two to four weeks. 

Colorado case numbers are listed below according to the month in which a person first presented with monkeypox symptoms. Case counts for all time periods may change as CDPHE identifies more cases. This data will be updated every Thursday at 4 p.m.


Date of presentation

Number of cases

May 2022


June 2022


Where to get tested for monkeypox

The following locations have monkeypox testing available for people who have a rash or other symptoms of monkeypox. Call the phone number listed to ask about available appointments. If you have a rash or sores, cover them with long sleeves, pants, or a bandage. Wear a well-fitting mask over your nose and mouth during your appointment. 

We will add more locations to this page as they become available.

Denver Sexual Health Clinic

Phone: (303) 602-3540
Address: 660 N. Bannock St., Pavilion L, 2nd Floor, Denver, CO 80204

Fact sheets

Local public health agencies resources