The National Institute of Health has published its Boletín Epidemiológico for week 47. Here's my summary/translation of the Zika section, which begins on page 101.
From the start of the endemic phase in week 29, through week 47, 4,394 cases of Zika virus disease have been reported. Added to those of the epidemic phase that ended in week 28, the total is now 8,826 confirmed cases and 96,729 clinically suspected cases.
In week 47 140 cases were recorded, 49 new this week and 91 delayed reports from earlier weeks. All 140 cases were suspected. The curve of reports has diminished since week 5 of 2016, when the peak number of cases (6,368) was reported. The average number of reports in the past five weeks is 87 cases per week. The national incidence of Zika during the epidemic phase was 376,8 cases per 100,000 urban residents. In the endemic phase, incidence is 16.5 cases per 100,000 urban residents.
Women make up 66.3% of confirmed and clinically suspected cases; persons aged 30 to 64 make up 63.6%; 14.2% are in the 25-29 aged group; 2.9% are babies one year old or less; 3.2% are aged 65 or older.
Pregnant women diagnosed with Zika virus disease
From the start of the epidemic through week 47 of 2016, 5,882 cases have been confirmed in pregnant women, while 13,566 report having had Zika-compatible symptoms at some point in their pregnancy.
Intensified surveillance for microcephaly and other congenital CNS defects
Between weeks 1 and 47 of 2016, 60 microcephaly cases assocated with Zika virus have been confirmed. This is no change from week 46. Another 229 cases were discarded and 463 cases ae under study.
Special surveillance of neurological syndromes with Zika-compatible antecedent symptoms
From December 15, 2015, through week 47 of 2016, 665 cases of neurological syndromes have been reported. Guillain-Barré syndrome cases made up 65.2% of these cases. The curve of reports of GBS corresponds to that of confirmed and suspected Zika cases.
