The latest epidemiological report (epidemiological week 47) from Colombia, which includes data on Zika virus (ZIKV) disease (ZVD; 20NOV2016-26NOV2016), has been produced by the Colombian National Institute for Health team.
NOTE: While these data were reported the past epidemiological week (EW), they may not be from that week. See earlier post about possible reporting lag.
As of this report, 60 (+0 from last EW) live births have been diagnosed with congenital ZIKV syndrome (CZVS; microcephaly/central nervous system disorder), confirmed as being ZIKV positive. That represents 1.0% of all confirmed ZIKV positive mothers-a slowly but steadily rising proportion.
|The cumulative curve of confirmed ZVD cases|
(green circles, left-hand axis) and the change in confirmed ZVD case
numbers when compared to the preceding week's total
(green bars, right-hand axis). Data from .
Click on graph to enlarge.
No new laboratory confirmed ZIKV detections have been reported in Colombia for eh 20th week (green graph, above).
Brazil first reported positive (but unconfirmed) laboratory tests for ZIKV disease on 29th April 2015. Brazil then started to report a rise in foetal anomalies (an initial 141), in the form of microcephaly on 30th October 2015. This was 184 days - or about 6 months later. However, the genetic analyses suggest ZIKV was in Brazil from around 2013. It had a lot longer to get established. Perhaps this is the difference between Brazil and Colombia, given reports a growing 2,180 ZIKV congenital syndrome diagnoses  compared to Colombia's 60.