Worried About the Zika Virus

While Zika virus infections may not be seen frequently by pediatric gastroenterologists, this infection will be a common concern for the families we treat and we may end up taking care of children with feeding problems/neurologic impairment due to congenital infection.

I attended a recent Georgia American Academy of Pediatrics board meeting.  One of the topics discussed was the Zika virus.  An update was given by Dr. Harry Keyserling, chair of the infectious disease committee (who has given permission for me to share some of his slides).  Some of the important points from his talk:

  • The Zika virus shares some similarities with the Dengue virus. The Zika virus is a single-stranded RNA flavivirus. Incubation period is 3 days to a few weeks.  It can be acquired from mosquito bites, spread sexually, transplacentally or intrapartum.  It may be transmissible via blood, organ donation or possibly breastmilk.


History of Zika Virus

History of Zika Virus

Most are asymptomatic. The clinical spectrum in those with symptoms are noted above.

Most are asymptomatic. The clinical spectrum in those with symptoms are noted above.

  • 80% of infected individuals are asymptomatic.
Approximate distribution of mosquito vector

Approximate distribution of mosquito vector

  • Due to the geographic distribution of the vector, it is likely that there will be many more cases in Georgia.

Screen Shot 2016-03-02 at 6.57.28 PM



  • The most alarming association has been with microcephaly.  In some locations, there have been recommendations to avoid pregnancy until 2018.  After natural infection has spread, it is likely to lead to immunity and then should be safe to become pregnant.


  • Zika can be acquired through sexual-transmission which indicates that pregnant women in endemic areas could need to avoid sex.

More resources:

My take: Because the Zika virus is going to continue to spread and the methods for prevention are not entirely effective, the next few years are going to present a lot of challenges.  This will continue until some population immunity develops (following infection or perhaps after development of an effective vaccine).

1 thought on “Worried About the Zika Virus

  1. Pingback: Compared with Zika, CMV is a Greater Threat and Less Discussed | gutsandgrowth

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.