A newly filed lawsuit against the U.S. government alleges that two Black infants were unknowingly enrolled in an experimental RSV vaccine trial in Washington, D.C., during the 1960s and later died after contracting the respiratory illness. The families of Ross Otto Hambrick and Victor Marcellus King say they only recently learned of the children's involvement in the research and are now seeking accountability for what they describe as a lack of informed consent and wrongful death. According to the complaint, which was obtained by The New York Times , the infants received doses of an experimental respiratory syncytial virus (RSV) vaccine between 1965 and 1966 as part of a federal research effort to combat a virus that remains a leading cause of serious respiratory illness in young children. The lawsuit claims neither family was informed that the babies were participating in a vaccine study. Both children later developed severe respiratory complications associated with RSV and bacterial pneumonia.…