Last week, the Centers for Disease Control and Prevention updated its advice for travelers to protect themselves against monkeypox. One recommendation was to wear a mask. It's possible to protect yourself from diseases with a mask.

It was deleted late Monday night.

The agency said that the mask recommendation was removed because it caused confusion.

In countries where monkeypox is spreading, household contacts and health care workers should wear masks. It applies to other people who may be in close contact with someone who has been confirmed with monkeypox.

The turnabout shows that the monkeypox can be airborne over short distances. There are no firm estimates of how much airborne transmission contributes to the spread.

More than a thousand people in 31 countries have been diagnosed with the disease since the first case was reported in May. There were 31 cases in the United States as of Tuesday.

Most of the previous outbreak cases were reported by people who had close contact with an animal. In some cases airborne transmission was the only explanation.

The C.D.C. encourages patients with monkeypox to wear a surgical mask. The person with monkeypox is asking other household members to consider wearing a mask.

It is assumed that Monkeypox behaves the same way as its viral cousin. Several instances of airborne transmission were described in a 2012 review of smallpox transmission.

He wrote that it was the only plausible explanation for the outbreak of smallpox in New York. The air currents in the building aided in the spread of the disease.

Two health care workers who had no direct contact with patients were recorded as having transmission cases of monkeypox in Nigeria.

The primary mode of transmission of monkeypox was discussed at a scientific conference last week.

ImageNew Yorkers being vaccinated for smallpox during an outbreak in 1947. In a few documented instances, airborne transmission was the only explanation for the infections.
New Yorkers being vaccinated for smallpox during an outbreak in 1947. In a few documented instances, airborne transmission was the only explanation for the infections.Credit...FPG/Hulton Archive/Getty Images
New Yorkers being vaccinated for smallpox during an outbreak in 1947. In a few documented instances, airborne transmission was the only explanation for the infections.

Nancy Sullivan, a researcher at the National Institute of Allergy and Infectious Diseases, said at the conference that it was unclear what the true route of transmission was. It's probably going to take a seat for some of the research.

Health officials have not addressed the possibility of airborne transmission or the use of masks in briefings with the public.

They emphasized the role of large respiratory droplets that are expelled from patients and drift onto objects. The C.D.C.'s leading expert on the virus said that Monkeypox infections require close sustained contact.

She said that this is not a virus that was transmitted over a long period of time. We need to be careful how we frame this.

It's a fair point to make, and it's something we should consider moving forward.

Card 1 of 5

Monkeypox is what it is. In parts of Central and West Africa, there is a disease called monkeypox. It is not as bad as smallpox. According to the Centers for Disease Control and Prevention, it was discovered in the 50's.

The symptoms are what they are. People who have been bitten by the Monkeypox will have a rash that starts with red marks and grows into a large lump of flesh. Symptoms can take as long as three weeks after exposure to show and can last as long as four weeks. Vaccines and other treatments can be used to stop an outbreak.

What is it that makes it infectious? Body fluids, skin contact and respiratory droplets are some of the ways in which the virus can be spread. It has spread in unusual ways this year and among populations that have not been at risk in the past.

I don't know if I should be concerned. There is a high chance that the virus will be spread during sexual contact, but there is a low chance that it will be transmitted in other ways. The virus can be fatal in a small percentage of cases, but most people recover quickly. Studies show that older adults may be able to protect themselves from vaccine-related diseases.

The C.D.C. was quick to change its position on masks for travelers worried about monkeypox. Guidance on airborne transmission of the virus was published by the agency in September of 2020.

The coronaviruses could remain suspended in the air for hours at a time.

Information about the monkeypox virus has come from studies on the disease. In order to prepare for the use of bioterrorists, scientists have been studying the spread of the disease for the past two decades.

Most people think that smallpox is transmitted by large droplets, but it can sometimes be transmitted by small-particle aerosols.

It's important for hospitals to plan for the possibility of airborne transmission of monkeypox because precautions to avoid the spread of Viruses through Aerosols are not universal.

Many patients are isolating because their symptoms are mild. Experts said that members of those households might need to consider airborne transmission.

There are many unanswered questions about the current outbreak. Scientists don't know if people can transmit the virus in the absence of symptoms, if it can be transmitted in semen or vaginal excretion, and if it can be transmitted in the community.

The monkeypox virus can be passed on to a fetus by a pregnant woman. Four of five pregnant women in the largest study of its kind had at least one miscarriage. The researchers were able to find the virus in the fetus.