Definition: In this task you are given a Chinese paragraph related to a criminal case, your job is to give an answer of what the criminal charge is. Take note a) if there are multiple charges only one needs to be outputted b) the criminal charge should be in Chinese. 
Input: 公诉机关指控，2012年4月3日9时30分许，被告人庞某明知自己患有梅毒的严重性病仍在浙江省兰溪市云山街道聚仁路62号2幢401室出租屋内卖淫，以人民币30元价格与严某进行卖淫、嫖娼活动。
Output:
传播性病