{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T22:24:31Z","timestamp":1791239071382,"version":"4.1.0"},"reference-count":37,"publisher":"American Society for Microbiology","issue":"6","license":[{"start":{"date-parts":[[2014,6,1]],"date-time":"2014-06-01T00:00:00Z","timestamp":1401580800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["J Clin Microbiol"],"published-print":{"date-parts":[[2014,6]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>\n            Patients with cryptococcal meningitis in sub-Saharan Africa frequently relapse following treatment. The natural history and etiology of these recurrent episodes warrant investigation. Here, we used multilocus sequence typing (MLST) to compare the molecular genotypes of strains of\n            <jats:named-content content-type=\"genus-species\">Cryptococcus neoformans<\/jats:named-content>\n            and\n            <jats:named-content content-type=\"genus-species\">Cryptococcus gattii<\/jats:named-content>\n            isolated from serial episodes of cryptococcal meningitis that were separated by at least 110 days. The most common MLST genotypes among the isolates were the dominant global clinical genotypes (M5 and M4) of molecular type VNI, as well as the VNI genotypes apparently restricted to southern Africa. In addition, there was considerable genetic diversity among these South African isolates, as 15% of the patients had unique genotypes. Eleven percent of the patients were reinfected with a genetically different strain following their initial diagnosis and treatment. However, the majority of serial episodes (89%) were caused by strains with the same genotype as the original strain. These results indicate that serial episodes of cryptococcosis in South Africa are frequently associated with persistence or relapse of the original infection. Using a reference broth microdilution method, we found that the serial isolates of 11% of the patients infected with strains of\n            <jats:named-content content-type=\"genus-species\">C. neoformans<\/jats:named-content>\n            var.\n            <jats:named-content content-type=\"genus-species\">grubii<\/jats:named-content>\n            with identical genotypes exhibited \u22654-fold increases in the MICs to fluconazole. Therefore, these recurrent episodes may have been precipitated by inadequate induction or consolidation of antifungal treatment and occasionally may have been due to increased resistance to fluconazole, which may have developed during the chronic infection.\n          <\/jats:p>","DOI":"10.1128\/jcm.03177-13","type":"journal-article","created":{"date-parts":[[2014,3,20]],"date-time":"2014-03-20T04:59:26Z","timestamp":1395291566000},"page":"1921-1931","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":49,"title":["Multilocus Sequence Typing of Serially Collected Isolates of Cryptococcus from HIV-Infected Patients in South Africa"],"prefix":"10.1128","volume":"52","author":[{"given":"Marelize","family":"Van Wyk","sequence":"first","affiliation":[{"name":"National Institute for Communicable Diseases, Centre for Opportunistic, Tropical and Hospital Infections, Johannesburg, South Africa"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nelesh P.","family":"Govender","sequence":"additional","affiliation":[{"name":"National Institute for Communicable Diseases, Centre for Opportunistic, Tropical and Hospital Infections, Johannesburg, South Africa"},{"name":"Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas G.","family":"Mitchell","sequence":"additional","affiliation":[{"name":"Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anastasia P.","family":"Litvintseva","sequence":"additional","affiliation":[{"name":"Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.micro.60.080805.142102"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pmed.0040047"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.1086\/649858"},{"key":"e_1_3_3_5_2","first-page":"237","volume-title":"Cryptococcus: from human pathogen to model yeast","author":"Mitchell TG","year":"2011","unstructured":"MitchellTGCasta\u00f1edaENielsenKWankeBLaz\u00e9raMS. 2011. Ecological niches for Cryptococcus neoformans and C. gattii, p 237\u2013259. In HeitmanJKozelTRKwon-ChungKJPerfectJRCasadevallA (ed), Cryptococcus: from human pathogen to model yeast. ASM Press, Washington, DC."},{"key":"e_1_3_3_6_2","doi-asserted-by":"publisher","DOI":"10.1097\/QAD.0b013e328322ffac"},{"key":"e_1_3_3_7_2","doi-asserted-by":"publisher","DOI":"10.7196\/SAMJ.4378"},{"key":"e_1_3_3_8_2","doi-asserted-by":"publisher","DOI":"10.1097\/QCO.0b013e3283177f6c"},{"key":"e_1_3_3_9_2","doi-asserted-by":"publisher","DOI":"10.7196\/SAMJ.3515"},{"key":"e_1_3_3_10_2","doi-asserted-by":"publisher","DOI":"10.1097\/01.aids.0000161769.06158.8a"},{"key":"e_1_3_3_11_2","doi-asserted-by":"publisher","DOI":"10.4102\/sajhivmed.v8i3.617"},{"key":"e_1_3_3_12_2","first-page":"201","volume-title":"17th Congress of the International Society for Human and Animal Mycology","author":"Govender NP","year":"2009","unstructured":"GovenderNP. 2009. Trends in antifungal drug susceptibility of Cryptococcus species in South Africa, 2002\u20132008, p 201. Abstr. EP-01\u20135. 17th Congress of the International Society for Human and Animal Mycology, Tokyo, Japan."},{"key":"e_1_3_3_13_2","first-page":"269","volume-title":"Cryptococcus: from human pathogen to model yeast","author":"Govender NP","year":"2011","unstructured":"GovenderNPMitchellTGLitvintsevaAPMigliaKJ. 2011. Cryptococcosis in Africa, p 269\u2013285. In HeitmanJKozelTRKwon-ChungKJPerfectJRCasadevallA (ed), Cryptococcus: from human pathogen to model yeast. ASM Press, Washington, DC."},{"key":"e_1_3_3_14_2","doi-asserted-by":"publisher","DOI":"10.1258\/ijsa.2010.010235"},{"key":"e_1_3_3_15_2","first-page":"97","volume-title":"Cryptococcus: from human pathogen to model yeast","author":"Litvintseva AP","year":"2011","unstructured":"LitvintsevaAPXuJMitchellTG. 2011. Population structure and ecology of Cryptococcus neoformans and C. gattii, p 97\u2013111. In HeitmanJKozelTRKwon-ChungKJPerfectJRCasadevallA (ed), Cryptococcus: from human pathogen to model yeast. 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HIV-associated opportunistic fungal infections: a guide to using the clinical microbiology laboratory. South. Afr. J. HIV Med. 8:18\u201323.","journal-title":"South. Afr. J. HIV Med."},{"key":"e_1_3_3_30_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pmed.1000384"},{"key":"e_1_3_3_31_2","doi-asserted-by":"publisher","DOI":"10.1128\/JCM.43.5.2163-2167.2005"},{"key":"e_1_3_3_32_2","doi-asserted-by":"publisher","DOI":"10.1128\/AAC.45.2.420-427.2001"},{"key":"e_1_3_3_33_2","doi-asserted-by":"publisher","DOI":"10.1128\/AAC.00295-09"},{"key":"e_1_3_3_34_2","doi-asserted-by":"publisher","DOI":"10.1128\/AAC.00694-13"},{"key":"e_1_3_3_35_2","doi-asserted-by":"publisher","DOI":"10.3201\/eid1405.071312"},{"key":"e_1_3_3_36_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1567-1364.2010.00648.x"},{"key":"e_1_3_3_37_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.ppat.1001343"},{"key":"e_1_3_3_38_2","doi-asserted-by":"publisher","DOI":"10.7883\/yoken.66.51"}],"container-title":["Journal of Clinical Microbiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.asm.org\/doi\/pdf\/10.1128\/JCM.03177-13","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.asm.org\/doi\/pdf\/10.1128\/JCM.03177-13","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,3,5]],"date-time":"2022-03-05T11:58:15Z","timestamp":1646481495000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.asm.org\/doi\/10.1128\/JCM.03177-13"}},"subtitle":[],"editor":[{"given":"G. A.","family":"Land","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"editor"}]}],"short-title":[],"issued":{"date-parts":[[2014,6]]},"references-count":37,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2014,6]]}},"alternative-id":["10.1128\/JCM.03177-13"],"URL":"https:\/\/doi.org\/10.1128\/jcm.03177-13","relation":{},"ISSN":["0095-1137","1098-660X"],"issn-type":[{"value":"0095-1137","type":"print"},{"value":"1098-660X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2014,6]]},"assertion":[{"value":"2013-11-12","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2014-03-14","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2014-05-15","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}