Significant number, maybe. Penetration of medical services in these countries has increased quite a lot in the same time span. But, impact of this depends on th

Significant number, maybe. Penetration of medical services in these countries has increased quite a lot in the same time span. But, impact of this depends on the type of disease. Significant increase in breast cancer cases for example is I believe a direct result of increased diagnosis. But, for the increase in cases of viral diseases, I believe the majority cause is due to things like more dense population, unsanitary conditions and poor infrastructure.