by Daniel Keith, guest blogger
There is a lot of talk in the news about the Zika virus, and everyone is chiming in including doctors, scientists, and even the Pope. There are different news articles that say it is a pandemic, and there are articles that say it’s no big deal. I have put together some research to share with you about this virus, and what it means for you today in 2016 as new or expectant parents. If you want to skip the science and data part I completely understand, but go ahead and scroll down to the end of the article where you will find my recommendations in bold.
Aedes aegypti mosquito |
Zika Background
The Zika virus is from the Flaviviridae family and the Flavivirus genus. It is primarily carried and transmitted by the Aedes aegypti as known as the Yellow Fever Mosquito which lives in tropical and sub tropical climates around the world. This includes areas of the southeastern United States especially near the Gulf Coast and South Atlantic areas. The virus typically includes symptoms of fever, rash, joint pain, and red eyes according to the CDC. Zika is considered a short term virus that your body will create antibodies for and develop immunities to within days, but it may take up to a week or two in some cases. It is also mentioned that there is currently no vaccine for humans, although there have been reports of a vaccine that is still in developmental stages.Zika as an STD
It has also been confirmed that the
Zika virus can be sexually transmitted. In Interim Guidelines for Preventionof Sexual Transmission of Zika Virus — United States, 2016 on the CDC’s
website the article sites three cases of the Zika virus being transmitted by a
male having sex with a female. Currently it is not known if a female can pass
it to a male. The disconcerting part of this article is the fact that it is unkown
how long the Zika virus can survive in a male's sperm. The case they have looked
at confirmed that a strand of Zika virus survived for at least 10 weeks in a male’s
sperm. This means if a male has visited an area that is affected by the Zika
virus, as a precaution, he should abstain from sexual contact or use a condom.
It is recommended that these precautions be taken until further research is
done on how long the virus is considered a risk to pass via sexual contact.
Zika Complications in Infants
A significant issue with the Zika virus is microcephaly, and its link with women who have
contracted the Zika virus during or right before pregnancy. Most of the
information you will hear about this comes from this article published in 2015 PossibleAssociation Between Zika Virus Infection and Microcephaly — Brazil, 2015 which
can also be found on the CDC’s website. There are several important points that
you need to be aware of in this article. First is that it is an incredibly
small sample size. There were only 35 infants included in the study. All of the
mothers had either lived in or visited Zika virus affected areas during or
right before their pregnancy. 74% of the mothers experienced a rash like
disease during their pregnancy, and of these 35 infants 71% of them were
diagnosed with severe micocephaly. It also mentions that 27 of the infants had neuroimaging studies, and all 27 were abnormal.
Now we need to be very careful with this raw data. The sample size is very small, and correlation does not mean causation. There are numerous factors that could not be controlled for such as diets, pollution, and other externalities that could be considered factors. That being said, it is alarming that there is a high correlation between the two. The bottom line here is that more research has to be done, and in the meantime precautions should be taken if plans are made to go to a Zika virus affected area. There are other viruses for which we routinely vaccinate in the US that are also linked to microcephaly such as herpes simplex virus and rubella virus during pregnancy.
Now we need to be very careful with this raw data. The sample size is very small, and correlation does not mean causation. There are numerous factors that could not be controlled for such as diets, pollution, and other externalities that could be considered factors. That being said, it is alarming that there is a high correlation between the two. The bottom line here is that more research has to be done, and in the meantime precautions should be taken if plans are made to go to a Zika virus affected area. There are other viruses for which we routinely vaccinate in the US that are also linked to microcephaly such as herpes simplex virus and rubella virus during pregnancy.
Current Map of Zika Virus Affected Areas |
If you don’t read anything else in this article make sure to read these points.
The Zika Virus is an STD, and we do not know the
amount of time that is considered “safe” for sexual contact after contraction.
Recommendation: Abstain from sex or use a condom
if you or your partner has been to an area affected by the Zika virus.
There is a possible link between microcephaly in
infants and pregnant mothers who were suspected of contracting the virus. This
needs more research, but is alarming.
Recommendation: If you are pregnant or trying to
become pregnant contact your healthcare provider if you or your partner has
been to a Zika virus affected area.
Although Zeka RNA has been isolated in breastmilk, there appears to be no danger whatsoever to breastfeeding infants.
Recommendation: If you are a nursing mother, and you contract
the Zika virus you should continue nursing.
Sources:
1.
Zika Virus General Information:
2.
Guidelines for STD transmission of the Zika Virus:
3.
Microcephaly and the Zika Virus:
4.
Breast Feeding and the Zika Virus: