Zika virus infection – Brazil and Colombia
Zika Alert !!!
for the update
Between 8 October and 16 October 2015, the National IHR
Focal Points of Brazil and Colombia notified PAHO/WHO of
cases of Zika virus infection.
In May 2015, the public health authorities of Brazil
confirmed autochthonous transmission of Zika virus in
the northeastern part of the country. As of 8 October,
autochthonous cases of Zika virus had been detected in
14 states: Alagoas, Bahia, Ceará, Maranhão, Mato Grosso,
Pará, Paraná, Paraíba, Pernambuco, Piauí, Rio de
Janeiro, Rio Grande do Norte, Roraima, and São Paulo.
Public health measures implemented by national and state
authorities include the development and dissemination of
sentinel protocol for Zika virus surveillance,
development and validation of protocol for surveillance
of neurological syndromes, and vector control
As of 16 October, 9 samples were laboratory-confirmed as
Zika virus infections out of 98 samples from the Bolívar
department (13 from Cartagena and 85 from Turbaco).
These are the first cases of Zika virus infection
detected in the country.
Zika fever is a mosquito-borne viral disease caused by
Zika virus, consisting of mild fever, rash (mostly
maculo-papular), headaches, arthralgia, myalgia,
asthenia, and non-purulent conjunctivitis, occurring
about three to twelve days after the mosquito vector
bite. One out of four people may not develop symptoms,
but in those who are affected the disease is usually
mild with symptoms that can last between two and seven
days. Its clinical manifestation is often similar to
dengue, also a mosquito-borne illness.
Since 2014, indigenous circulation of Zika virus has
been detected in the Americas. In February 2014, the
public health authorities of Chile confirmed the first
case of indigenous transmission of Zika virus infection
on Easter Island, and cases were reported until June
2014. Recent outbreaks of Zika virus fever in different
regions of the world demonstrate the potential for the
arbovirus to spread through territories where the (Aedes)
vector is found.
Given the increased transmission of Zika virus in the
Region of the Americas, PAHO/WHO recommends that its
Member States establish and maintain the capacity to
detect and confirm cases of Zika virus infection,
prepare their health services for a potential additional
burden at all levels of health care, and implement an
effective public communications strategy to reduce the
mosquitoes that transmit this disease, particularly in
areas where this vector is present. The complete set of
recommendations is available in the latest