pubmed-article:506209 | pubmed:abstractText | Immunization of mice with a number of live virus vaccines (poliovaccine, smallpox vaccine, measles vaccine) given consecutively at 14-day intervals resulted in increased frequency of chromosomal aberrations in bone marrow cells of the animals after the completion of the entire vaccination course (14 and 30 days after the last vaccination). Measles vaccine and, particularly, smallpox vaccine exert a significant harmful effect on the karyotype of the bone marrow cells. The effect on the chromosomes of the vaccines given consecutively differs somewhat from the individual effect of each of them. | lld:pubmed |