BUENOS AIRES, June 16 (Xinhua) -- Argentina has logged more than 508,000 cases of dengue so far this year, 3.29 times higher than the same period last year, with most cases seen in the country's central region, the Health Ministry reported Sunday.
In the first 23 weeks of the year, 508,867 cases of dengue were reported, accounting for 96.7 percent of the 526,030 total cases registered since the dengue season beg
