Mpox

"There may have been undetected transmission for a while," a WHO official says.

"There's a window of opportunity where this can be contained," a WHO official says.

More than 20 countries have logged a combined total of more than 300 monkeypox cases.

"The risk of exposure is not limited to any one particular group," CDC director says, adding that the disease doesn't care about borders.

Though given to only 1 patient, tecovirimat was tied to a shorter illness and signs of shorter viral shedding.

Cases in Europe have risen to 118, and the UK has now confirmed 78 monkeypox infections.

California and Washington state report their first cases, as CDC experts advise on what doctors should be alert for.

The CDC says many patients have a distinctive monkeypox rash around their genitals, and UK officials report 36 new infections.

At least 8 European countries and Canada, the US, and Australia have tallied cases.

As cases climb in several nations, an expert notes, "We are much more susceptible to poxviruses."