14th ICID - Poster Abstracts - International Society for Infectious ...

When citing these abstracts please use the following reference:
Author(s) of abstract. Title of abstract [abstract]. Int J Infect Dis 2010;14S1: Abstract number.
Please note that the official publication of the International Journal of Infectious Diseases 2010, Volume 14, Supplement 1
is available electronically on http://www.sciencedirect.com
Final Abstract Number: 33.016
Session: Tuberculosis: Epidemiology, Prevention & Control
Date: Wednesday, March 10, 2010
Time: 12:30-13:30
Room: Poster & Exhibition Area/Ground Level
Type: Poster Presentation
Tuberculosis in health-care workers: Results of a surveillance program in Mexico City
P. Leal Moran 1 , M. Huertas Jimenez 2 , C. Romero 2 , A. Chavez RIos 2 , A. Haro Osnaya 2 , R. De
Paz Garcia 2 , A. De la Torre 2 , A. Macías Hernandez 2 , S. Ponce de León Rosales 3
1 National Institute of Medical Sciences, Mexico City, mexico, Mexico, 2 National Institute of
Medical Sciences, Mexico City, Mexico, 3 Birmex, Mexico City, Mexico
Background: Tuberculosis is major public health problem, left untreated, each person with active
TB disease will infect on average between 10 and 15 people every year. Preventive strategies
are essential for the achievement of the Millennium Development Goal.
Methods: In 1992 a HCW’s surveillance program was instituted in our hospital, which consist in
an initial evaluation for every worker during their first week of working within the Institute, a
questionnaire with demographic and risk variables, PPD application, and a basic risk prevention’s
course. PPD Booster is applied for those with an initial PPD negative test, and then annual
follow-up is performed. The workers with PPD positive test are evaluated by a physician and a
chest-Rx is taken. Prophylaxis is indicated in every HCW who has a PPD positive test during the
follow up or risk factors for the disease.
Results: A total of 5513 HCW have been evaluated since 1992, 61% were women, and the
median age was 27. Forty percent were physicians, 32% nurses, 10% administrative workers and
the rest (18%) from other areas. Of the evaluated workers 1932 (38%) had an initial PPD positive
test, all of them had a normal chest-Rx. After the Booster application we identified 286 workers
with positive test. During the follow up 259 HCW have had a PPD positive test. A total of 169
prophylactic treatments have been provided, 53 workers did not finish the treatment because of
mild secondary effects and personal decision. Sixteen HCWs have developed clinical
tuberculosis, 9 had a previous PPD positive test and refused prophylactic treatment.
Conclusion: The initial PPD positive test prevalence was 43%. HCWs are in risk of this infection
especially in developing countries. A a specific program for them is essential in order to reduce
nosocomial transmission and identify those in risk of tuberculosis.