CDC Cites 15 Microcephaly Cases In United States

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Pregnancy Outcomes in the United States and the District of Columbia

Liveborn infants with birth defects*

9

Includes aggregated data reported to the US Zika Pregnancy Registry as of July 7, 2016

Pregnancy losses with birth defects**

6

Includes aggregated data reported to the US Zika Pregnancy Registry as of July 7, 2016

http://www.cdc.gov/zika/geo/pregnancy-outcomes.html

 

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Outcomes of Pregnancies with Laboratory Evidence of Possible Zika Virus Infection in the United States, 2016

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Pregnancy Outcomes in the United States and the District of Columbia

Liveborn infants with birth defects*

9

Includes aggregated data reported to the US Zika Pregnancy Registry as of July 7, 2016

Pregnancy losses with birth defects**

6

Includes aggregated data reported to the US Zika Pregnancy Registry as of July 7, 2016

 

Pregnancy Outcomes in the United States Territories

Liveborn infants with birth defects*

0

Includes aggregated data from the US territories reported to the US Zika Pregnancy Registry and data from Puerto Rico reported to the Zika Active Pregnancy Surveillance System as of July 7, 2016

Pregnancy losses with birth defects**

1

Includes aggregated data from the US territories reported to the US Zika Pregnancy Registry and data from Puerto Rico reported to the Zika Active Pregnancy Surveillance System as of July 7, 2016

 

What these numbers show

• These numbers reflect poor outcomes among pregnancies with laboratory evidence of possible Zika virus infection reported to the US Zika Pregnancy Registry.
• The number of live-born infants and pregnancy losses with birth defects are combined for the 50 US states, the District of Columbia, and the US territories. To protect the privacy of the women and children affected by Zika, CDC is not reporting individual state, tribal, territorial or jurisdictional level data.
• The poor birth outcomes reported include those that have been detected in infants infected with Zika before or during birth, including microcephaly, calcium deposits in the brain indicating possible brain damage, excess fluid in the brain cavities and surrounding the brain, absent or poorly formed brain structures, abnormal eye development, or other problems resulting from damage to brain that affects nerves, muscles and bones, such as clubfoot or inflexible joints.

What these new numbers do not show

• These numbers are not real time estimates. They will reflect the outcomes of pregnancies reported with any laboratory evidence of possible Zika virus infection as of 12 noon every Thursday the week prior; numbers will be delayed one week.
• These numbers do not reflect outcomes among ongoing pregnancies.
• Although these outcomes occurred in pregnancies with laboratory evidence of Zika virus infection, we do not know whether they were caused by Zika virus infection or other factors.

Where do these numbers come from?

• These data reflect pregnancies reported to the US Zika Pregnancy Registry. CDC, in collaboration with state, local, tribal and territorial health departments, established this registry for comprehensive monitoring of pregnancy and infant outcomes following Zika virus infection.
• The data collected through this system will be used to update recommendations for clinical care, to plan for services and support for pregnant women and families affected by Zika virus, and to improve prevention of Zika virus infection during pregnancy.

These registries are covered by an assurance of confidentiality. This protection requires us to safeguard the information collected for the pregnant women and infants in the registries.

* Includes microcephaly, calcium deposits in the brain indicating possible brain damage, excess fluid in the brain cavities and surrounding the brain, absent or poorly formed brain structures, abnormal eye development, or other problems resulting from damage to the brain that affects nerves, muscles and bones, such as clubfoot or inflexible joints.

**Includes miscarriage, stillbirths, and terminations with evidence of the birth defects mentioned above

 

 

 

• Page last reviewed: June 15, 2016
• Page last updated: July 14, 2016
• Content source: 
  • Centers for Disease Control and Prevention
    National Center for Emerging and Zoonotic Infectious Diseases (NCEZID)
    Division of Vector-Borne Diseases (DVBD)