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Zika Update

Virus found in breastmilk; another disease linked to Zika infection; some mosquitoes resistant to pesticide; genetically engineered–mosquito field trials could proceed

Written byKerry Grens
| 2 min read

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FLICKR, CONIFERCONIFERBreastmilk from a mother in New Caledonia, a collection of islands in the Pacific, has tested positive for Zika virus, researchers reported this month (March 1). The implications of this finding are not yet clear. “Arbovirus transmission via breastfeeding has been previously suggested for dengue, West Nile, and yellow fever, but more information is needed,” the authors wrote in The Lancet.

The woman had given birth in July 2015 and experienced a fever at the time that lasted a couple of days. She also developed a rash shortly after having her baby. Both the mom and the newborn left the hospital healthy.

The US Centers for Disease Control and Prevention (CDC) recommends that infected women and those living in regions with Zika virus circulating should breastfeed. “No evidence of Zika virus infection associated with breastfeeding have been reported,” according to the CDC. “Current evidence suggests that the benefits of breastfeeding outweigh the theoretical risks of Zika virus infection transmission through breast milk.”

Another case reported this month suggested Zika may be linked with swelling in the central nervous system. A man who had visited New Caledonia ...

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Meet the Author

  • kerry grens

    Kerry served as The Scientist’s news director until 2021. Before joining The Scientist in 2013, she was a stringer for Reuters Health, the senior health and science reporter at WHYY in Philadelphia, and the health and science reporter at New Hampshire Public Radio. Kerry got her start in journalism as a AAAS Mass Media fellow at KUNC in Colorado. She has a master’s in biological sciences from Stanford University and a biology degree from Loyola University Chicago.

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