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. 2000 Jan;55(1):39–45. doi: 10.1136/thorax.55.1.39

Towards elimination of tuberculosis in a low income country: the experience of Cuba, 1962-97

A Marrero 1, J Caminero 1, R Rodriguez 1, N Billo 1
PMCID: PMC1745596  PMID: 10607800

Abstract

BACKGROUND—This study describes the epidemiological trends of tuberculosis in Cuba and the performance of the tuberculosis control programme. The circumstances that caused an increase in the incidence of new cases of tuberculosis between 1991 and 1994 had been analysed and were corrected in 1995-7.
METHODS—A descriptive study of the incidence rates of new cases of tuberculosis notified from 1962 to 1997 was made, with special emphasis on the total change between 1965 and 1991 and the increase thereafter.
RESULTS—The case notification rate of 14.7 per 100 000 in 1994 was almost three times the rate found in 1991 (4.8 per 100 000) and reversed the mean annual decrease of 5% observed since 1965. This increase was almost twofold in the rate of smear positive new cases (4.4 per 100 000 in 1991 and 8.3 in 1994). From 1971 onwards the programme had achieved a cure rate of 90% throughout the country with only 2% absconding by applying directly observed treatment. The main factors associated with the increasing trends were: (1) a probable underdetection of cases for the 1988-92 period that generated contagious sources in the community; (2) improved case finding from 1993 onwards and the introduction of an expanded case definition in 1994; (3) a considerable increase in the diagnostic delay from initial medical consultation to beginning of antituberculosis treatment (56.9 days in 1993); and (4) operational changes in the tuberculosis control programme due to the economic crisis in Cuba. In 1995, 1996 and 1997 it has been possible to reverse this trend, achieving rates of 14.1, 13.5, and 12.2 per 100 000, respectively (7.6, 7.6, and 6.9 for smear positive cases) as a result of effective intervention correcting the problems identified. Reducing the diagnostic delay attributable to shortcomings in the health care system and the study of contacts were of particular importance for re-establishing the tuberculosis programme as a priority.
CONCLUSIONS—Cuba represents a good example of how it is possible to fight against tuberculosis effectively, even in a low income country, by applying control strategies advocated by the World Health Organisation and the International Union Against Tuberculosis and Lung Disease and by giving adequate support to the programme through political commitment.



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Selected References

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