Health authorities, with support from PAHO and other agencies, are conducting research to clarify the cause, risk factors, and
consequences of microcephaly.
Not exact matches
Although one
of the most serious
consequences of the Zika virus (ZIKV) in infants is
microcephaly, there is a broad collection
of anomalies now known as congenital Zika syndrome (CZS).
«As we learn more about the
consequences of Zika infection, including the recent revelation that babies
of Zika - infected mothers who had normal head sizes at birth have been diagnosed with
microcephaly months later, it is vital that we know this enemy and remain vigilant in protecting ourselves,» Diaz concludes.
To build their tool, Alison Galvani, from Yale University in New Haven, USA, and colleagues focused on the two known serious
consequences of Zika infection:
microcephaly, a condition in which children are born with a small brain causing mental impairment, and Guillain - Barré syndrome or GBS, a potentially fatal disease that can cause neural damage and paralysis.
Even as the Zika virus becomes more prevalent — the Centers for Disease Control reports that the number
of U.S. infants born with
microcephaly and other birth defects is 20 times over the normal rate — researchers are still trying to fully pin down the identifying
consequences of the viral infection.
What seems to be universal is that
microcephaly is not the sole finding but is a
consequence of several brain injuries.
The included birth defects were based primarily on case reports
of outcomes occurring in association with Zika virus infection during pregnancy; there is more evidence for some
of these birth defects than for others, and a causal link has not been established for all.5,10,12,21 - 27 Because much
of the focus to date has been on
microcephaly and brain abnormalities, data were summarized in 2 mutually exclusive categories: (1) brain abnormalities with or without
microcephaly regardless
of the presence
of additional birth defects and (2) neural tube defects and other early brain malformations, eye abnormalities, and other
consequences of central nervous system dysfunction among those without evident brain abnormalities or
microcephaly.