The National Institute of Health has published its Boletín Epidemiológico for week 19. As usual, it offers an excellent survey of the Zika situation. Here's my summary of some key points:
Between week 40 of 2015 and week 19 of 2016, the country has reported 6,402 confirmed Zika cases and 77,487 clinically suspected. In week 19, 3,096 cases were reported, 1,387 of them found this week and 1,709 identified earlier but reported late. 1,535 new cases were confirmed and 1,561 suspected. Five departments—Valle del Cauca, Norte de Santander, Huila, Tolima, and Santander—accounted for 55% of all cases.
The number of cases has continued to fall since week 6, with a distinct increase in week 13. The average number of reported cases in the last five weeks was 2,512.
Women make of 66.52% of confirmed and suspected Zika cases. Adults 30 to 65 made up 61.71%. Adults between 25 and 29 made up 14.01%. Babies under one year old made up 2.6% and persons over 65 made of 3.37%.
Pregnant women diagnosed with Zika
From the start of the epidemic through week 19, 4,097 pregnant women were diagnosed with Zika and 10,941 cases are suspected in those who reported symptoms compatible with Zika. Norte de Santander has the largest proportion of cases, with 16.51% (2,483 pregnant women).
Intensified surveillance for microcephaly
Between weeks 1 and 19 of 2016,five cases of Zika-associated microcephaly have been confirmed, 26 cases were discarded, and 50 cases are under study.
Special surveillance for neurological syndromes following illness compatible with Zika
Between December 15, 2015 and week 19 of 2016, 529 cases of neurological syndromes have been reported. Men made up 56.5% (299 cases); 12.1% (64) were in persons 65 or older.Guillain-Barré syndrome made up 64.46% of neurological syndrome cases (341).