{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T13:16:24Z","timestamp":1777900584429,"version":"3.51.4"},"reference-count":0,"publisher":"S. Karger AG","license":[{"start":{"date-parts":[[2009,7,31]],"date-time":"2009-07-31T00:00:00Z","timestamp":1248998400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"},{"start":{"date-parts":[[2009,7,31]],"date-time":"2009-07-31T00:00:00Z","timestamp":1248998400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int Arch Allergy Appl Imm"],"abstract":"<jats:p>53 different batches of commercial IgG were tested for antibodies to group B streptococci (GBS) types Ia, Ib, II and III. The levels of antibodies varied widely. Comparison of the anti-GBS antibody levels in these preparations with those found in normal blood donor sera showed that the commercial IgG contained approximatively 2.6 times less type-specific antibodies. We conclude that the commercial IgG now available is not optimal for passive immunization against GBS infections in neonates.<\/jats:p>","DOI":"10.1159\/000233096","type":"journal-article","created":{"date-parts":[[2009,7,31]],"date-time":"2009-07-31T07:27:44Z","timestamp":1249025264000},"page":"193-195","source":"Crossref","is-referenced-by-count":2,"title":["Low Levels of Antibodies to Surface Antigens of Group B Streptococci in Commercial IgG Preparations"],"prefix":"10.1159","author":[{"given":"Viveka","family":"Lind\u00e9n","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Karen Kvist","family":"Christensen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Poul","family":"Christensen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"127","published-online":{"date-parts":[[2009,7,31]]},"container-title":["International Archives of Allergy and Applied Immunology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/233096","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/karger.com\/article-pdf\/doi\/10.1159\/000233096","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T10:34:22Z","timestamp":1777631662000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000233096"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,7,31]]},"references-count":0,"URL":"https:\/\/doi.org\/10.1159\/000233096","archive":["Portico"],"relation":{},"ISSN":["0020-5915","2571-6662"],"issn-type":[{"value":"0020-5915","type":"print"},{"value":"2571-6662","type":"electronic"}],"subject":[],"published":{"date-parts":[[2009,7,31]]}}}