The Zika virus is mainly spread through
mosquito bites, and many health officials are still trying to determine
whether sexual transmission is a likely cause. The CDC has stated more
research is needed to determine the way the virus is spread through sex
and other varying factors. There have been two cases where the Zika
virus has been found in semen, including a recent case in Texas.
Several other cases, including one in 2008, have involved men that have
traveled to infected areas and women who have not. In 2008, a malaria specialist who caught the Zika
virus passed the infection to his wife shortly after his return to
Colorado. His wife had not left Colorado and there were no mosquitoes in
the area capable of carrying Zika. Experts concluded then that the only
logical explanation was transmission through sex, but sex is yet to be
confirmed as a definite cause of the spread. This leads researchers to
believe that men may be able to pass the Zika infection to women but not
the other way round. The CDC made the announcement on Tuesday.
“Zika virus can be spread by a man to his sex partners.
In known cases of likely sexual transmission, the men had Zika symptoms.
In one case, the virus was spread a few days before symptoms developed.
The virus is present in semen longer than in blood.”
The CDC has now advised men who have visited the listed (below) areas
with outbreaks to not have sex with pregnant women and to always wear a
condom. They have also recommended trips by pregnant women to affected
areas be postponed. The list of affected areas is steadily growing and
now more then 30 destinations have been added to a list of areas
experiencing the outbreak.
There is particular fear surrounding the
Zika virus and pregnant women. Officials are investigating a possible
connection between the virus and babies that are born with brain
defects, abnormally small heads, and affected cognitive development. Scientists in Brazil have linked Zika to microcephaly birth defects
in babies after confirming the presence of the Zika virus in the
amniotic fluid of two women who had had Zika symptoms while pregnant.
Although there is fear that the 14 Zika
cases are linked to sex, mosquito bites are still the main cause of
infection, and steps should be taken to protect yourself from
mosquitoes. There is no cure or vaccination yet and Margaret Chan, the
head of the World Health Organization, said the world faced “a long
journey” to defeat Zika and that it is a “very tricky, very tenacious,
very difficult” virus.
The Zika virus has erupted across most of
Latin America and the Caribbean within the last year with 82 Zika
infections diagnosed in the U.S. All those affected traveled to these
areas. The confirmed areas which women have been encouraged by the CDC
not to travel to are:Americas
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