The United States, which is forecasting an increase inmonkeypox cases in the coming weeks, does not currently have enough vaccines to meet demand, a top health official said Friday. Concern has grown, especially in New York, the epicenter of the US outbreak of the virus, with nearly 390 cases counted as of July 14. The United States has seen a total of 1,470 cases. The illness is characterized by lesions on the skin — which can appear on the genitals or the mouth — and is often accompanied by fever, sore throat and pain in the lymph nodes. It usually clears up on its own but can be extremely…