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Dengue Fever Cases Drop 91% in Neighbourhood of Piracicaba, Brazil, Where Oxitec's Friendly(TM) Aedes Were Released

OXFORD, England, Jul 14, 2016 (PR Newswire Europe via COMTEX) -- OXFORD, England, July 14, 2016 /PRNewswire/ --

Epidemiological surveillance year ended in July 2016 with 12 cases reported for the disease in CECAP/Eldorado, compared to 133 in the year that preceded it

Piracicaba's Epidemiologic Surveillance service released new data this week which showed a 91% reduction of dengue fever cases registered in the CECAP/Eldorado district, an area of 5,000 residents, in the 2015/2016 dengue-year as compared to the 2014/2015 period. The incidence decreased to just 12 cases in 2015/2016, the first year in which Friendly(TM) Aedes, the genetically engineered mosquitoes that fight wild Aedes aegypti, were released there, versus 133 cases in the previous year. According to Epidemiologic Surveillance the rest of the municipality saw a 52% reduction in dengue fever incidence during the same period, from 3,487 cases in the 2014/2015 period to 1,676 cases in 2015/2016.

Additionally, the overall incidence rate in CECAP/Eldorado for the dengue-year 2014/2015 was 195% larger than the rate recorded for the rest of the municipality. In the dengue-year 2015/2016, the rate in CECAP/Eldorado was 45% lower than the rate in the rest of the municipality. The latest data roundup also reports zero cases of Zika and chikungunya in CECAP/Eldorado.

Area Dengue Year** 2014/2015 2015/2016 Piracicaba* Cases of Dengue 3,487 1,676 Population 386,449 386,449 Incidence 0.902% 0.437% CECAP/Eldorado Cases of Dengue 133 12 Population 5,000 5,000 Incidence 2.66% 0.24% 

* Data excludes CECAP/Eldorado

** Dengue year in Brazil starts in 27th...