Male Mysm1 floxed homozygous mice (Mysm1fl/fl) were exposed to two weeks of CRS, and then adeno‐associated viruses (AAV) expressing Cre recombinase and GFP (AAV‐CMV‐Cre) or expressing GFP only (AAV‐Con) under the cytomegalovirus (CMV) promoter were microinjected into the MHb region. The gene discussed is MYSM1; the disease is congenital rubella syndrome.