People with mpox can transmit the virus while they have symptoms (normally for between two and four weeks). You can catch mpox through close physical contact with someone who has symptoms. The rash, bodily fluids (such as fluid, pus, or blood from skin lesions), and scabs are particularly infectious. Clothing, bedding, towels, or objects like eating utensils/dishes that have been contaminated by contact with a person with the virus can also infect others.
Ulcers, lesions, or sores in the mouth can also be infectious, meaning the virus can spread through saliva. People who closely interact with someone who has the virus, including health workers, household members, and sexual partners are therefore at greater risk for infection.
The virus can also be transmitted from someone who is pregnant to the fetus from the placenta, or from a parent with the disease to their child during or after birth through skin-to-skin contact.
It is not clear whether people who do not have symptoms can transmit the disease.