{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,8]],"date-time":"2025-12-08T22:04:39Z","timestamp":1765231479637,"version":"3.38.0"},"reference-count":0,"publisher":"SAGE Publications","issue":"12","license":[{"start":{"date-parts":[[2000,12,1]],"date-time":"2000-12-01T00:00:00Z","timestamp":975628800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int J STD AIDS"],"published-print":{"date-parts":[[2000,12,1]]},"abstract":"<jats:p> There have been great political, social and economic changes in Bulgaria since 1990 with higher incidences of syphilis when compared with the previously controlled morbidity of syphilis. There has been a 7-fold increase in 1998 compared with 1990. The male\/female ratio remained the same 1.2:1. A higher number of cases was reported in cities than in villages and small towns, 80.68% in 1990; 73.4% in 1998. The number of employed patients with syphilis has decreased during the years - from 75.5% in 1990 to 44% in 1998, with a corresponding increase in syphilis in the unemployed. The age group at highest risk is 20-24 years, 28.7% in 1991; 24% in 1998. The least affected group are those older than 55 - the incidence being 6.34% in 1990; 2.6% in 1997 and 4% in 1998. The prevalence of the different stages of early infection remained the same. The incidence of congenital syphilis increased from 1 in 1990 and 1991 to 21 in 1996, 29 in 1997 and 35 in 1998. <\/jats:p>","DOI":"10.1258\/0956462001915200","type":"journal-article","created":{"date-parts":[[2002,10,16]],"date-time":"2002-10-16T09:48:30Z","timestamp":1034761710000},"page":"819-822","source":"Crossref","is-referenced-by-count":5,"title":["Epidemiology of syphilis in Bulgaria, 1990\u20131998"],"prefix":"10.1177","volume":"11","author":[{"given":"R","family":"Dencheva","sequence":"first","affiliation":[{"name":"Department of Dermatology and Venereology, Medical University, Sofia,\r                  Bulgaria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"G","family":"Spirov","sequence":"additional","affiliation":[{"name":"Department of Dermatology and Venereology, Medical University, Sofia,\r                  Bulgaria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"K","family":"Gilina","sequence":"additional","affiliation":[{"name":"National Institute for Health Information, Sofia, Bulgaria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"D","family":"Niagolova","sequence":"additional","affiliation":[{"name":"Department of Dermatology and Venereology, Medical University, Sofia,\r                  Bulgaria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"G","family":"Pehlivanov","sequence":"additional","affiliation":[{"name":"Department of Dermatology and Venereology, Medical University, Sofia,\r                  Bulgaria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"N","family":"Tsankov","sequence":"additional","affiliation":[{"name":"Department of Dermatology and Venereology, Medical University, Sofia,\r                  Bulgaria"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2000,12,1]]},"container-title":["International Journal of STD &amp; AIDS"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1258\/0956462001915200","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1258\/0956462001915200","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,3,3]],"date-time":"2025-03-03T16:19:37Z","timestamp":1741018777000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1258\/0956462001915200"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2000,12,1]]},"references-count":0,"journal-issue":{"issue":"12","published-print":{"date-parts":[[2000,12,1]]}},"alternative-id":["10.1258\/0956462001915200"],"URL":"https:\/\/doi.org\/10.1258\/0956462001915200","relation":{},"ISSN":["0956-4624","1758-1052"],"issn-type":[{"type":"print","value":"0956-4624"},{"type":"electronic","value":"1758-1052"}],"subject":[],"published":{"date-parts":[[2000,12,1]]}}}