Microcephaly: diagnoses and discards and those with Zika virus...Report #18 from Brazil

The latest Brazil MOH report on microcephaly diagnoses was released 22-MAR-2016 – Report #18 which extends the data to 19-MAR-2016; epidemiological week #10.[1]
The following is a summary of key numbers, after translation via Google.

• There have been 6,671 (+191 since last week) reported suspected diagnoses of microcephaly since some unspecified date in 2015
• 4,293 (+25; 64%) remain under investigation
• 2,378 (+166; 55% of those under investigation) cases have been investigated and classified  
• 907 (+44; 21% of those classified, 14% of all reported) have been confirmed as microencephaly diagnoses
• 122 (+28; 13% of confirmed microcephaly cases; 2% of suspected cases) have been laboratory confirmed as Zika virus infections (PCR or serology but no specifics on which or whether mum/foetus/infant/samples etc)
• 1,471 (+122; 60% of those investigated, 22% of all reported) have been discarded

References...

1. http://portalsaude.saude.gov.br/images/pdf/2016/marco/22/COES-Microcefalias--Informe-Epidemiologico-18-SE-11-2016-22mar2016-15h26.pdf
2. http://portalsaude.saude.gov.br/index.php/cidadao/principal/agencia-saude/22726-ministerio-da-saude-investiga-4-293-casos-de-microcefalia-no-pais