MEASLES EPIDEMICS IN TURKEY AND DEVELOPING COUNTRIES: REVIEW OF THE LITERATURE

Conclusion
WHO recommends that vaccination against measles normally be undertaken at the age of 9 months (11); however, It was considered that measles epidemics have occurred every 2 to 5 years in developing countries such as Turkey (Table 1). In this respect, during a measles epidemic, if a large proportion of cases occur in children below nine months (i.e., the attack rate for children <9 months is high), the age of measles immunization should be temporarily lowered to 6 months. Because of the lesser efficacy of the vaccine at this age, these children must be re-immunized as soon as possible after 9 months (11-13).

In Turkey, medical facilities are concentrated in the cities and larger towns, leaving most rural areas without adequate access to medical care. This situation is especially acute in eastern Anatolia, where medical care is generally available only in the provincial capitals (14).

In Turkey, 30.509 measles cases were reported in 2001 and 66.1% (n=20,154) of them were seen between March and June (Figure 1). The children were mostly in the 5-9 years age group (37.1%, n=11329) (Figure 2). These datas reveal that morbidity rate of 132 per 100 000 population and mortality rate of 18 per million population in 1970 decreased gradually by the years and reach to 45 per 100000 population and 0.13 per million population, respectively, in 2001 (Table 1), because of improving the protective health services and adding measles to routine vaccination schedule (10).

The recent measles outbreak in Turkey was reported from rural of Sirnak Province in southeast of Turkey (15). This outbreak began in January, 2001 in two settlements (Cizre and Idil counties of Sirnak province) nearby each other therefore intensive comings and goings seen between them. In Cizre, the index case applied to village clinic in 03 January 2001 while in Idil the first application was seen in 23 January. The peak application levels were observed at March and April in Cizre and at May in Idil. The course of the outbreak might have been effected from the personnels whose occupational places change frequently or from the exessive amount of health personnels working as temporarily. It is important that according to primary care clinic records, 7.4% of the suffered patients (n=39) were 0 to 9 months old children who hadn't been vaccinated yet (15). This ratio is in accordance with the findings of Ertem et al. (16) who determined that 6.7% of the sufferers were below 9 months at the measles outbreak occured and 26.7% of the measles cases were vaccinated children in the center of Diyarbakir, Southeast of Turkey in 1996.