Skip to main content
. 2017 Nov 27;9:ecurrents.outbreaks.5afb0bfb8cf31d9a4baba7b19b4edbac. [Version 1] doi: 10.1371/currents.outbreaks.5afb0bfb8cf31d9a4baba7b19b4edbac

Weekly Zika (blue) and microcephaly (red) reports over time in each Brazilian state. Note the multipliers for the microcephaly numbers. If Zika is the cause of the cases of microcephaly a delay of about 33 weeks should be seen between peaks of the former and latter. This appears to be the case for Bahia, Ceara, and Alagoas for early peaks of Zika and later peaks of microcephaly. We note that if seasonal use of insecticides coincides with outbreaks, then the cause may also be those insecticides. A filter (0.25, 0.5, 0.25) has been applied to smooth the data.

Fig. 9: Weekly Zika (blue) and microcephaly (red) reports over time in each Brazilian state. Note the multipliers for the microcephaly numbers. If Zika is the cause of the cases of microcephaly a delay of about 33 weeks should be seen between peaks of the former and latter. This appears to be the case for Bahia, Ceara, and Alagoas for early peaks of Zika and later peaks of microcephaly. We note that if seasonal use of insecticides coincides with outbreaks, then the cause may also be those insecticides. A filter (0.25, 0.5, 0.25) has been applied to smooth the data.