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October 27, 2016, 11:00 AM ET NYU College of Global Public Health
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Study finds people are more receptive to reproductive health strategies, e.g. delaying pregnancy or terminating pregnancies, than indoor spraying campaigns
New York, NY – Even though a large majority of the U.S. public is aware of the Zika virus, according to a newly-released New York University (NYU) Zika study, fewer than half know some of the hallmarks of this novel virus: that it can cause birth defects among babies born to Zika-infected pregnant women, that it may be sexually-transmitted in addition to being mosquito-borne, and that most human hosts carrying the virus may be asymptomatic after having been infected.
The vast majority of the approximately 4,100 Zika infections in the U.S. have been acquired outside of the country, in areas such as South America and the Caribbean where the Zika virus is far more prevalent. According to the US Centers for Disease Control and Prevention, of the 137 cases of Zika infection that have been contracted to date in the U.S., virtually all of them have been in Miami-Dade County, Florida. Public health officials are monitoring nearly 900 Zika-infected pregnant women in the U.S. for potential birth defects and neurological conditions that could be related to the Zika virus.
“Public health officials are being extremely vigilant about the Zika virus,” said New York University’s College of Global Public Health (NYU CGPH) associate professor David Abramson, the lead investigator on several Zika risk perception studies. “However, the general public is adopting a ‘wait-and-see’ attitude. Our studies of the public’s views on Zika risk should help reframe risk communication strategies, particularly if they need to be rapidly mobilized in response to an outbreak.”
The study, “U.S. Public’s Perception of Zika Risk: Awareness, Knowledge, and Receptivity to Public Health Interventions,” by the Program for Population Impact, Recovery and Resilience (PiR2) at NYU CGPH, notes that even though a large majority of the public is aware of the Zika virus, people are split on their support for various public health interventions to prevent or address Zika infections.
Over 60% of the U.S. public supports federally-funded abortion services for Zika-infected pregnant women at risk for delivering babies with birth defects, but fewer than 40% would support a government campaign of indoor house spraying to control mosquitos.
Although there have been limited outbreaks of Zika infections in the continental U.S., the threat of the Zika virus persists, according to public health officials and research scientists.
“In the absence of medical countermeasures such as vaccines and anti-viral treatments, the most effective tools relate to prevention, mitigation, and surveillance,” notes Dr. Abramson. “For all of these, risk communication is critically important in order to generate support for public health intervention campaigns, and to encourage those population practices that can limit viral transmission.”
Among the report’s key findings, derived from the national population study funded by National Science Foundation (NSF), are:
- Over 80% of U.S. residents are aware of the Zika virus, but fewer than 40% know that the viral infection may be asymptomatic, may cause severe birth defects, and may be sexually-transmitted.
- Only about a third of Americans believe that they or their families are at risk for contracting the infection; that sense of risk is about ten percentage points higher in the southern states.
- Support for public health interventions varies greatly, as well: approximately 60% of Americans who are aware of the virus are in favor of providing access to federally-funded abortion services for women at risk of delivering a baby with severe birth defects, approximately 50% support delaying pregnancy, and approximately 40% endorse indoor insecticide spraying by public health officials.
- Increased risk perception and knowledge of the Zika virus do not, in and of themselves, explain why U.S. residents endorse specific public health interventions. Public confidence in government and political ideology are also strongly associated with these strategies. U.S. residents who are confident in government are nearly twice as likely to support indoor spraying campaigns as are people who are not confident in government. Additionally, U.S. residents who identify as Democrats are nearly seven times as likely as those who identify as Republicans to support access to federally-funded abortion services for pregnant women infected with the virus. Furthermore, U.S. public health officials are on high alert for signs of Zika outbreaks but a large majority of U.S. public does not see itself at risk.
Abramson and his NYU CGPH research team have received funding from the NSF and from the Robert Wood Johnson Foundation (RWJF) to study the evolving perception of the Zika threat among the U.S. public, with a particular emphasis on women of child-bearing age.
Their initial briefing report is based on a series of national population surveys, funded by NSF and on a year-long longitudinal panel study, funded by RWJF, of women of child-bearing age. The report was shared with key federal, state, and local public health officials.
David Abramson, PhD, MPH, is Clinical Associate Professor of Public Health at NYU’s CGPH and the founding director of NYU’s program on Population Impact, Recovery, and Resilience (PiR2). He is the former deputy director of Columbia University’s National Center for Disaster Preparedness and is presently leading studies examining the impacts of the Deepwater Horizon oil spill on children’s health in the Gulf Coast and a study on the long-term effects on populations exposed to Hurricane Katrina. Dr. Abramson is the lead investigator of the Zika studies, and can speak about the study’s objectives, methods, and findings, and provide context for how risk perceptions to novel threats such as Zika are shaped. E-Mail: firstname.lastname@example.org .
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