Zika Virus and Your Pregnancy


In response to many patients asking about the Zika virus, Dr. Rosenbluth shares information for pre-pregnant and pregnant women

Zika VirusZika virus has been on the mind of many of my patients recently. How could it not be? Reports of the virus and its potential impact on pregnant women and their babies floods the news constantly.

My patients are in the process of conceiving or have recently become pregnant. Many are asking my advice about traveling to areas affected by this virus and the potential risks of being infected. Much is not known about the outbreak but I have compiled some essential facts to help people understand the potential risks.

Old disease, new problem

First of all, the Zika virus is not new. It was first detected in the 1940s in Africa. The virus is carried by several species of mosquitoes that typically live in tropical regions.

The condition is relatively mild and only 1 in 5 people will experience symptoms. Common symptoms include rashes, mild headaches, fever, fatigue and joint pain.

The disease initially affected people near the equator in Africa and Asia until the early part of this decade when the virus made its way east across the Pacific Ocean. It was not until 2015 that Zika made it to the shores of the Americas and many people became ill.

In the beginning of 2015, public health officials in Brazil noted a widespread Zika outbreak. Later that year, officials also noted a sharp increase in a very specific type of birth defect called microcephaly.

Microcephaly is the abnormal development of a child’s head and brain that can lead to serious neurological problems, including delayed development and seizures. Since there was such a close relationship to the increase in Zika infections followed by microcephaly several months later, it is believed that the Zika virus might cause these birth defects. The association between the Zika virus and occurrence of microcephaly has now been medically proven.

Additionally, the Journal of the American Medical Association recently identified a number of birth defects in addition to microcephaly that are caused by the Zika virus. This group of defects is called congenital Zika syndrome, and it includes:

  • Severe microcephaly (abnormally small head size)
  • Decreased brain tissue with a specific pattern of calcium deposits indicating brain damage
  • Damage to the back of the eye with a specific pattern of scarring and increased pigment
  • Joints with limited range of motion, such as clubfoot
  • Too much muscle tone, restricting movement soon after birth.

How does one contract the Zika virus?

Zika is transmitted through the blood by way of mosquito bites. The disease can also be sexually transmitted. In the fall of 2016, the World Health Organization advised that anyone traveling to a Zika-affected region should practice protected sex for the following six months.

How can I protect myself from Zika?

Many patients have asked what they should do to protect themselves from the virus. If you are trying to conceive now or are pregnant, the best course of action is to avoid traveling outside of the US into areas affected by Zika. Also pay close attention to areas of the United States where isolated cases of Zika have been reported. If you do travel to affected areas, mosquito bite prevention is a must.

Cover up all skin with clothing (preferably treated with permethrin) and use an effective bug spray. Use air-conditioning in your home or when traveling if possible, and make sure to eliminate standing water near your home that can harbor mosquitoes.

Related Reading: Mosquito Bite Prevention

If your sexually intimate male partner has traveled to an affected area and you are pregnant, it is best to either remain abstinent or use condoms throughout the duration of the pregnancy.

  • In the fall of 2016, the World Health Organization strengthened their guidelines that state that anyone traveling in a Zika affected area should practice protected sex for at least six months.
  • The Centers for Disease Control & Prevention (CDC) updated their travel guidelines to include 11 countries in southeastern Asia where the Zika virus is actively spreading. The CDC also advises caution against traveling to certain areas in the United States where isolated cases of Zika have been reported.  Pregnant women should avoid non-essential travel to these areas during this time. The CDC also continues to advise caution when traveling in Central and South America, where the virus outbreak originated. This travel guide is continually updated as Zika is an actively spreading virus. 

There is no treatment or cure for the Zika virus. A vaccine is currently being developed but will take some time before it is available. The vaccine is currently in phase 1 trials. Patients can get a blood test to determine if they have been infected with the virus.

Should I get tested?

For women who have been to areas affected by Zika and report clinical illness consistent with Zika virus disease, blood tests should be performed within seven days of symptom onset. If negative, routine obstetrical care is recommended. If positive, more frequent monitoring is recommended by the CDC, including frequent ultrasounds.

New information regarding Zika is being identified quickly and recommendations can change rapidly. The CDC updates their website regularly regarding the Zika virus. The site also tracks the isolated instances of Zika cases reported within the United States.  If there are any major changes, I will also update you.

Until then, if you are trying to get pregnant or are pregnant (so, most all of our patients!), it is best to avoid Zika infected areas. If you cannot avoid those areas, use bug spray, stay indoors and cover up. If your male partner has traveled to these areas, avoid sexual contact with him or use condoms.

If you believe you have contracted Zika, please see your healthcare provider ASAP. Stay safe and talk to you soon!