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A Large Rubella Outbreak With Spread From the Workplace to the Community

CONTEXT Childhood vaccination has reduced rubella disease to low levels in the United States, but outbreaks continue to occur. The largest outbreak in the past 5 years occurred in Nebraska in 1999. OBJECTIVES To examine risk factors for disease, susceptibility of the risk population, role of vaccine...

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Published in:JAMA : the journal of the American Medical Association 2000-12, Vol.284 (21), p.2733-2739
Main Authors: Danovaro-Holliday, M. Carolina, LeBaron, Charles W, Allensworth, Carol, Raymond, Richard, Borden, T. Grey, Murray, Alisa B, Icenogle, Joseph P, Reef, Susan E
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container_end_page 2739
container_issue 21
container_start_page 2733
container_title JAMA : the journal of the American Medical Association
container_volume 284
creator Danovaro-Holliday, M. Carolina
LeBaron, Charles W
Allensworth, Carol
Raymond, Richard
Borden, T. Grey
Murray, Alisa B
Icenogle, Joseph P
Reef, Susan E
description CONTEXT Childhood vaccination has reduced rubella disease to low levels in the United States, but outbreaks continue to occur. The largest outbreak in the past 5 years occurred in Nebraska in 1999. OBJECTIVES To examine risk factors for disease, susceptibility of the risk population, role of vaccine failure, and the need for new vaccination strategies in response to the Nebraska rubella outbreak. DESIGN, SETTING, AND PATIENTS Investigation of 83 confirmed rubella cases occurring in Douglas County, Nebraska, between March 23 and August 24, 1999; serosurvey of 413 pregnant women in the outbreak locale between October 1998 and March 1999 (prior to outbreak) and April and November 1999 (during and after outbreak). MAIN OUTCOME MEASURES Case characteristics, compared with that of the general county population; area childhood rubella vaccination rates; and susceptibility among pregnant women before vs during and after the outbreak. RESULTS All 83 rubella cases were unvaccinated or had unknown vaccination status and fell into 3 groups: (1) 52 (63%) were young adults (median age, 26 years), 83% of whom were born in Latin American countries where rubella vaccination was not routine. They were either employed in meatpacking plants or were their household contacts. Attack rates in the plants were high (14.4 per 1000 vs 0.19 per 1000 for general county population); (2) 16 (19%), including 14 children (9 of whom were aged
doi_str_mv 10.1001/jama.284.21.2733
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Carolina ; LeBaron, Charles W ; Allensworth, Carol ; Raymond, Richard ; Borden, T. Grey ; Murray, Alisa B ; Icenogle, Joseph P ; Reef, Susan E</creator><creatorcontrib>Danovaro-Holliday, M. Carolina ; LeBaron, Charles W ; Allensworth, Carol ; Raymond, Richard ; Borden, T. Grey ; Murray, Alisa B ; Icenogle, Joseph P ; Reef, Susan E</creatorcontrib><description>CONTEXT Childhood vaccination has reduced rubella disease to low levels in the United States, but outbreaks continue to occur. The largest outbreak in the past 5 years occurred in Nebraska in 1999. OBJECTIVES To examine risk factors for disease, susceptibility of the risk population, role of vaccine failure, and the need for new vaccination strategies in response to the Nebraska rubella outbreak. DESIGN, SETTING, AND PATIENTS Investigation of 83 confirmed rubella cases occurring in Douglas County, Nebraska, between March 23 and August 24, 1999; serosurvey of 413 pregnant women in the outbreak locale between October 1998 and March 1999 (prior to outbreak) and April and November 1999 (during and after outbreak). MAIN OUTCOME MEASURES Case characteristics, compared with that of the general county population; area childhood rubella vaccination rates; and susceptibility among pregnant women before vs during and after the outbreak. RESULTS All 83 rubella cases were unvaccinated or had unknown vaccination status and fell into 3 groups: (1) 52 (63%) were young adults (median age, 26 years), 83% of whom were born in Latin American countries where rubella vaccination was not routine. They were either employed in meatpacking plants or were their household contacts. Attack rates in the plants were high (14.4 per 1000 vs 0.19 per 1000 for general county population); (2) 16 (19%), including 14 children (9 of whom were aged &lt;12 months) and 2 parents, were US-born and non-Hispanic, who acquired the disease through contacts at 2 day care facilities (attack rate, 88.1 per 1000); and (3) 15 (18%) were young adults (median age, 22 years) whose major disease risk was residence in population-dense census tracts where meatpacking–related cases resided (R2 = 0.343; P&lt;.001); 87% of these persons were born in Latin America. Among pregnant women, susceptibility rates were 13% before the outbreak and 11% during and after the outbreak. Six (25%) of 24 susceptible women tested were seropositive for rubella IgM. Rubella vaccination rates were 90.2% for preschool children and 99.8% for school-aged children. CONCLUSIONS A large rubella outbreak occurred among unvaccinated persons in a community with high immunity levels. Crowded working and living conditions facilitated transmission, but vaccine failure did not. Workplace vaccination could be considered to prevent similar outbreaks.</description><identifier>ISSN: 0098-7484</identifier><identifier>EISSN: 1538-3598</identifier><identifier>DOI: 10.1001/jama.284.21.2733</identifier><identifier>PMID: 11105178</identifier><identifier>CODEN: JAMAAP</identifier><language>eng</language><publisher>Chicago, IL: American Medical Association</publisher><subject>Adolescent ; Adult ; Biological and medical sciences ; Child ; Child, Preschool ; Community-Acquired Infections - epidemiology ; Disease ; Disease Outbreaks ; Emigration and Immigration ; Female ; Hispanic Americans - statistics &amp; numerical data ; Human viral diseases ; Humans ; Infant ; Infectious diseases ; Living conditions ; Male ; Medical sciences ; Nebraska - epidemiology ; Pregnancy ; Risk Factors ; Rubella - epidemiology ; Rubella - prevention &amp; control ; Rubella - transmission ; Rubella Vaccine ; Rubella virus ; Seroepidemiologic Studies ; South America ; Vaccination - statistics &amp; numerical data ; Vaccines ; Viral diseases ; Viral diseases with cutaneous or mucosal lesions and viral diseases of the eye ; Workplace - statistics &amp; numerical data</subject><ispartof>JAMA : the journal of the American Medical Association, 2000-12, Vol.284 (21), p.2733-2739</ispartof><rights>2001 INIST-CNRS</rights><rights>Copyright American Medical Association Dec 6, 2000</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a400t-f80d1b1956c735906cbf381b1cd3849b9d8acdaaf92cbde369a9cf4576ff5ea3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=826779$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/11105178$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Danovaro-Holliday, M. Carolina</creatorcontrib><creatorcontrib>LeBaron, Charles W</creatorcontrib><creatorcontrib>Allensworth, Carol</creatorcontrib><creatorcontrib>Raymond, Richard</creatorcontrib><creatorcontrib>Borden, T. Grey</creatorcontrib><creatorcontrib>Murray, Alisa B</creatorcontrib><creatorcontrib>Icenogle, Joseph P</creatorcontrib><creatorcontrib>Reef, Susan E</creatorcontrib><title>A Large Rubella Outbreak With Spread From the Workplace to the Community</title><title>JAMA : the journal of the American Medical Association</title><addtitle>JAMA</addtitle><description>CONTEXT Childhood vaccination has reduced rubella disease to low levels in the United States, but outbreaks continue to occur. The largest outbreak in the past 5 years occurred in Nebraska in 1999. OBJECTIVES To examine risk factors for disease, susceptibility of the risk population, role of vaccine failure, and the need for new vaccination strategies in response to the Nebraska rubella outbreak. DESIGN, SETTING, AND PATIENTS Investigation of 83 confirmed rubella cases occurring in Douglas County, Nebraska, between March 23 and August 24, 1999; serosurvey of 413 pregnant women in the outbreak locale between October 1998 and March 1999 (prior to outbreak) and April and November 1999 (during and after outbreak). MAIN OUTCOME MEASURES Case characteristics, compared with that of the general county population; area childhood rubella vaccination rates; and susceptibility among pregnant women before vs during and after the outbreak. RESULTS All 83 rubella cases were unvaccinated or had unknown vaccination status and fell into 3 groups: (1) 52 (63%) were young adults (median age, 26 years), 83% of whom were born in Latin American countries where rubella vaccination was not routine. They were either employed in meatpacking plants or were their household contacts. Attack rates in the plants were high (14.4 per 1000 vs 0.19 per 1000 for general county population); (2) 16 (19%), including 14 children (9 of whom were aged &lt;12 months) and 2 parents, were US-born and non-Hispanic, who acquired the disease through contacts at 2 day care facilities (attack rate, 88.1 per 1000); and (3) 15 (18%) were young adults (median age, 22 years) whose major disease risk was residence in population-dense census tracts where meatpacking–related cases resided (R2 = 0.343; P&lt;.001); 87% of these persons were born in Latin America. Among pregnant women, susceptibility rates were 13% before the outbreak and 11% during and after the outbreak. Six (25%) of 24 susceptible women tested were seropositive for rubella IgM. Rubella vaccination rates were 90.2% for preschool children and 99.8% for school-aged children. CONCLUSIONS A large rubella outbreak occurred among unvaccinated persons in a community with high immunity levels. Crowded working and living conditions facilitated transmission, but vaccine failure did not. Workplace vaccination could be considered to prevent similar outbreaks.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Biological and medical sciences</subject><subject>Child</subject><subject>Child, Preschool</subject><subject>Community-Acquired Infections - epidemiology</subject><subject>Disease</subject><subject>Disease Outbreaks</subject><subject>Emigration and Immigration</subject><subject>Female</subject><subject>Hispanic Americans - statistics &amp; numerical data</subject><subject>Human viral diseases</subject><subject>Humans</subject><subject>Infant</subject><subject>Infectious diseases</subject><subject>Living conditions</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Nebraska - epidemiology</subject><subject>Pregnancy</subject><subject>Risk Factors</subject><subject>Rubella - epidemiology</subject><subject>Rubella - prevention &amp; control</subject><subject>Rubella - transmission</subject><subject>Rubella Vaccine</subject><subject>Rubella virus</subject><subject>Seroepidemiologic Studies</subject><subject>South America</subject><subject>Vaccination - statistics &amp; numerical data</subject><subject>Vaccines</subject><subject>Viral diseases</subject><subject>Viral diseases with cutaneous or mucosal lesions and viral diseases of the eye</subject><subject>Workplace - statistics &amp; numerical data</subject><issn>0098-7484</issn><issn>1538-3598</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><recordid>eNqF0c1LwzAUAPAgipvTu14kKHhrzUfTJMcxnBMGAx3sWF7T1HVr15m2h_33Zm4qePFd8nj8eO8lQeiakpASQh9XUEHIVBQyGjLJ-QnqU8FVwIVWp6hPiFaBjFTUQxdNsyI-KJfnqEcpJYJK1UeTIZ6Ce7f4tUttWQKedW3qLKzxomiX-G3r8wyPXV3hdmnxonbrbQnG4rb-Kozqquo2Rbu7RGc5lI29Op4DNB8_zUeTYDp7fhkNpwFEhLRBrkhGU6pFbKTfksQmzbnyFZNxFelUZwpMBpBrZtLM8liDNnkkZJznwgIfoIdD262rPzrbtElVNGa_-cbWXZNI5q2Ixb-QKi9jpj28-wNXdec2_g4Jo5QLpoT06PaIurSyWbJ1RQVul3w_pAf3RwCNgTJ3sDFF8-MUi6Xcz7o5KP9vvz0038cnSASIzA</recordid><startdate>20001206</startdate><enddate>20001206</enddate><creator>Danovaro-Holliday, M. 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Carolina</au><au>LeBaron, Charles W</au><au>Allensworth, Carol</au><au>Raymond, Richard</au><au>Borden, T. Grey</au><au>Murray, Alisa B</au><au>Icenogle, Joseph P</au><au>Reef, Susan E</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A Large Rubella Outbreak With Spread From the Workplace to the Community</atitle><jtitle>JAMA : the journal of the American Medical Association</jtitle><addtitle>JAMA</addtitle><date>2000-12-06</date><risdate>2000</risdate><volume>284</volume><issue>21</issue><spage>2733</spage><epage>2739</epage><pages>2733-2739</pages><issn>0098-7484</issn><eissn>1538-3598</eissn><coden>JAMAAP</coden><abstract>CONTEXT Childhood vaccination has reduced rubella disease to low levels in the United States, but outbreaks continue to occur. The largest outbreak in the past 5 years occurred in Nebraska in 1999. OBJECTIVES To examine risk factors for disease, susceptibility of the risk population, role of vaccine failure, and the need for new vaccination strategies in response to the Nebraska rubella outbreak. DESIGN, SETTING, AND PATIENTS Investigation of 83 confirmed rubella cases occurring in Douglas County, Nebraska, between March 23 and August 24, 1999; serosurvey of 413 pregnant women in the outbreak locale between October 1998 and March 1999 (prior to outbreak) and April and November 1999 (during and after outbreak). MAIN OUTCOME MEASURES Case characteristics, compared with that of the general county population; area childhood rubella vaccination rates; and susceptibility among pregnant women before vs during and after the outbreak. RESULTS All 83 rubella cases were unvaccinated or had unknown vaccination status and fell into 3 groups: (1) 52 (63%) were young adults (median age, 26 years), 83% of whom were born in Latin American countries where rubella vaccination was not routine. They were either employed in meatpacking plants or were their household contacts. Attack rates in the plants were high (14.4 per 1000 vs 0.19 per 1000 for general county population); (2) 16 (19%), including 14 children (9 of whom were aged &lt;12 months) and 2 parents, were US-born and non-Hispanic, who acquired the disease through contacts at 2 day care facilities (attack rate, 88.1 per 1000); and (3) 15 (18%) were young adults (median age, 22 years) whose major disease risk was residence in population-dense census tracts where meatpacking–related cases resided (R2 = 0.343; P&lt;.001); 87% of these persons were born in Latin America. Among pregnant women, susceptibility rates were 13% before the outbreak and 11% during and after the outbreak. Six (25%) of 24 susceptible women tested were seropositive for rubella IgM. Rubella vaccination rates were 90.2% for preschool children and 99.8% for school-aged children. CONCLUSIONS A large rubella outbreak occurred among unvaccinated persons in a community with high immunity levels. Crowded working and living conditions facilitated transmission, but vaccine failure did not. Workplace vaccination could be considered to prevent similar outbreaks.</abstract><cop>Chicago, IL</cop><pub>American Medical Association</pub><pmid>11105178</pmid><doi>10.1001/jama.284.21.2733</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record>
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source American Medical Association Current Titles
subjects Adolescent
Adult
Biological and medical sciences
Child
Child, Preschool
Community-Acquired Infections - epidemiology
Disease
Disease Outbreaks
Emigration and Immigration
Female
Hispanic Americans - statistics & numerical data
Human viral diseases
Humans
Infant
Infectious diseases
Living conditions
Male
Medical sciences
Nebraska - epidemiology
Pregnancy
Risk Factors
Rubella - epidemiology
Rubella - prevention & control
Rubella - transmission
Rubella Vaccine
Rubella virus
Seroepidemiologic Studies
South America
Vaccination - statistics & numerical data
Vaccines
Viral diseases
Viral diseases with cutaneous or mucosal lesions and viral diseases of the eye
Workplace - statistics & numerical data
title A Large Rubella Outbreak With Spread From the Workplace to the Community
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