The Ohio Department of Health is monitoring the investigation into what may have caused a 21-year-old University of Cincinnati student to die suddenly last Sunday, around a day after he received the Johnson & Johnson vaccine. Alicia Shoults, a spokeswoman for the state health department, said the agency is waiting for the completion of a Hamilton County coroner’s report, and “if necessary,” further guidance from the CDC. If an adverse effect from a vaccine is reported to the CDC, it then leads to a federal investigation into whether the negative effects were coincidental or somehow related to the vaccine, Shoults...