Related Experiment Videos
Infant tuberculosis in Austria--trend reversal since 1990?
A Makristathis1, F Stauffer, J P Klein
1Abt. für Klinische Mikrobiologie, Universität Wien, Austria.
Infection
|March 20, 1998
Summary
Childhood tuberculosis in Austria is concerning, especially in children under 5. Direct household transmission from adults with tuberculosis was identified as a key infection route in infants.
Area of Science:
- Pediatrics
- Infectious Diseases
- Public Health
Background:
- Austria has observed a high incidence of childhood tuberculosis since 1990.
- Cases are predominantly in the 0-4 year age group, with a peak in 1995.
Purpose of the Study:
- To analyze infant tuberculosis cases in Austria.
- To identify transmission routes and causative strains.
Main Methods:
- A nationwide, lab-supported data collection system was established in 1995.
- Analysis of 85 infant tuberculosis cases from 1995-1996.
- Culture, DNA fingerprinting (RFLP) of Mycobacterium tuberculosis strains.
Main Results:
- Pulmonary manifestations were diagnosed in 66 of 85 cases.
- Tuberculosis was culture-proven in 45 cases.
- Direct household transmission from an adult with tuberculosis was the likely source in 9 cases (20%).
- RFLP analysis confirmed identical strains in three adult-infant transmission pairs.
Conclusions:
- Direct household transmission is a significant route for infant tuberculosis in Austria.
- Molecular typing confirms the link between adult and infant tuberculosis cases.
- Continued surveillance and targeted interventions are crucial.