Health officials have issued a statewide advisory to health care providers this week, recommending vaccinations for patients, in light of more than a dozen cases of mpox reported to the Oregon Health Authority and local public health authorities between July 20 and Oct. 31.

Mpox is an infectious disease caused by the monkeypox virus. It can cause a painful rash, enlarged lymph nodes and fever.

OHA advised health care workers to consider mpox when evaluating patients with similar symptoms, regardless of the patient’s reported risk, vaccination status or level of community transmission.

Here’s what Oregonians need to know:

Mpox spreads primarily through close, skin-to-skin contact. Most often, it has spread through intimate or sexual contact, and during contact with the lesions of an individual with mpox through a caregiving relationship, such as a parent caring for a child or an adult caretaker of another person.

What should I know about the vaccination?

JYNNEOS is a trademarked name for a vaccine that is used for prevention of smallpox and monkeypox disease in adults. It is free and readily available to anyone in Oregon who wants to be vaccinated, regardless of insurance status. It is also highly effective, according to a study published in May in the U.S. Centers for Disease Control and Prevention’s Morbidity and Mortality Weekly Report. According to the study, the vaccine was found to be 75% effective for those receiving one dose and 86% effective for those who had two doses.

People who suspect they have mpox should contact their health care provider to let them know before going in to be seen. The provider may recommend testing for mpox. Those who don’t have a health care provider can call 211 for help finding a clinic or health care provider.

What are the symptoms?

Mpox symptoms can start between a few days to three weeks after contact. The most common are flu-like symptoms of fever, chills, sweats, headache, muscle aches, swollen lymph nodes and feeling tired. Most people will develop a rash within a few days of the flu-like symptoms; some people only develop a rash, which may start on or near the penis, testicles, labia, vagina or anus. It also may be on other areas like the hands, feet, chest, face or mouth.

What has changed in Oregon?

Dr. Tim Menza, senior health adviser for the Health Authority’s mpox response, said Oregon saw one to three mpox cases per month before mid-summer.

While the recent increase in cases since July 20 is still lower than the 10 to 15 cases reported each week at the height of the 2022 outbreak, this year’s cases show that mpox is still spreading in Oregon.

“We never declared the 2022 outbreak over because we were concerned about increases like the one we are seeing now,” Menza said. “And it gives us an opportunity to remind folks in the community that vaccination against mpox remains a valuable tool for reducing the risk of mpox infection.”

How can I find out more?

For more information about mpox in Oregon, visit the Health Authority’s mpox website or the CDC’s mpox page. Vaccination clinics can also be searched by ZIP code with the mpox vaccine locator tool.