America's North Shore Journal

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Category: Analysis

A virus worse than Zika

CDC image

The news media have been full of the threat to unborn children from an infection with the Zika virus. Yet, there exists a common virus that presents a far more serious threat to a fetus. That virus is called cytomegalovirus, or CMV. According to the U.S. Centers for Disease Control and Prevention (CDC), half of all Americans will have contracted this illness by age 40. There is no cure and the illness can reactivate at any time.

Latest on Microcephaly in Brazil

photo by Muhammad Mahdi Karim

About this time in 2015, Brazilian public health authorities began to receive reports of an unusual number of cases of a birth defect called microcephaly in newborns. It appears that the defect, with other serious defects, is associated with some pregnant mothers contracting a Zika viral illness. This illness was passed to their fetus and seems to have caused, or at least contributed to the development, of these neurological defects.

Asymptomatic Zika Infections

photo by Muhammad Mahdi Karim

One of the biggest unknowns about Zika viral illnesses is the number of patients who contract the disease but have a sub-clinical or asymptomatic illness. The incidence of asymptomatic Zika is critical to understanding how the illness is spread. Can an asymptomatic patient pass the virus to another person through sex? Can an asymptomatic patient infect a mosquito that bites him and infect the mosquito enough that the mosquito can transmit the virus to another human?

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