M S Munn1, J S Duchin2, M Kay3, M Pecha4, C S Thibault5, M Narita6. 1. Centers for Disease Control and Prevention/Council of State and Territorial Epidemiologists (CSTE) Applied Epidemiology Fellowship Program, CSTE, Atlanta, Georgia, USA; Communicable Disease Epidemiology and Immunization Section, Public Health-Seattle & King County, Seattle, Washington, USA. 2. Communicable Disease Epidemiology and Immunization Section, Public Health-Seattle & King County, Seattle, Washington, USA; University of Washington, Seattle, Washington, USA. 3. Communicable Disease Epidemiology and Immunization Section, Public Health-Seattle & King County, Seattle, Washington, USA. 4. TB Control Program, Public Health-Seattle & King County, Seattle, Washington, USA. 5. HIV/STD Program, Public Health-Seattle & King County, Seattle, Washington, USA. 6. University of Washington, Seattle, Washington, USA; TB Control Program, Public Health-Seattle & King County, Seattle, Washington, USA.
Abstract
SETTING: A homeless shelter for men aged ⩾ 50 years in Seattle, Washington, USA. OBJECTIVES: We examined risk factors for tuberculous infection following exposure to an active pulmonary tuberculosis (TB) case residing in a homeless shelter setting. METHODS: A contact investigation identified shelter clients exposed to the index case; these contacts were then assessed for tuberculous infection. Risk factors, including proximity and duration of exposure to the index case, were evaluated for association with infection. A retrospective cohort study was conducted and a multivariate logistic regression model determined the magnitude of the association between tuberculous infection and significant risk factors. RESULTS: Of the 64 contacts evaluated, 25 (39%) had latent tuberculous infection and one had active TB. The multivariate logistic regression model found that duration of exposure and birthplace were significantly associated with odds of infection. CONCLUSIONS: Birthplace and duration of exposure were significant risk factors for tuberculous infection, underscoring the importance of this information when prioritizing contact investigations after TB exposure in congregate settings. We recommend that public health agencies work with homeless shelters to ensure that clients' attendance records contain the necessary information to facilitate contact tracing during public health TB investigations.
SETTING: A homeless shelter for men aged ⩾ 50 years in Seattle, Washington, USA. OBJECTIVES: We examined risk factors for tuberculous infection following exposure to an active pulmonary tuberculosis (TB) case residing in a homeless shelter setting. METHODS: A contact investigation identified shelter clients exposed to the index case; these contacts were then assessed for tuberculous infection. Risk factors, including proximity and duration of exposure to the index case, were evaluated for association with infection. A retrospective cohort study was conducted and a multivariate logistic regression model determined the magnitude of the association between tuberculous infection and significant risk factors. RESULTS: Of the 64 contacts evaluated, 25 (39%) had latent tuberculous infection and one had active TB. The multivariate logistic regression model found that duration of exposure and birthplace were significantly associated with odds of infection. CONCLUSIONS: Birthplace and duration of exposure were significant risk factors for tuberculous infection, underscoring the importance of this information when prioritizing contact investigations after TB exposure in congregate settings. We recommend that public health agencies work with homeless shelters to ensure that clients' attendance records contain the necessary information to facilitate contact tracing during public health TB investigations.
Authors: Jonathan M Wortham; Rongxia Li; Sandy P Althomsons; Steve Kammerer; Maryam B Haddad; Krista M Powell Journal: Am J Prev Med Date: 2021-05-13 Impact factor: 6.604
Authors: Paula Hino; Aline Aparecida Monroe; Renata Ferreira Takahashi; Káren Mendes Jorge de Souza; Tania Maria Ribeiro Monteiro de Figueiredo; Maria Rita Bertolozzi Journal: Rev Lat Am Enfermagem Date: 2018-11-29
Authors: Victoria L Fields; Tair Kiphibane; Jeffrey T Eason; Siosaia F Hafoka; Adriana S Lopez; Amy Schwartz; Ankita Henry; Cuc H Tran; Jacqueline E Tate; Hannah L Kirking; Rebecca L Laws; Thara Venkatappa; Emily Mosites; Martha P Montgomery Journal: Ann Epidemiol Date: 2021-04-22 Impact factor: 3.797