Skip to Content

In the Battle Against Zika, Researchers Prepare for a Marathon

The World Health Organization says Zika won’t succumb to a quick fix, even as scientists move forward on new ways of stamping it out.
November 21, 2016

The World Health Organization is no longer classifying Zika virus as an international public health emergency.

That’s not to say that it’s abated. Rather, the WHO is settling in for the long haul, deciding that the virus will be beaten by a steady, sustained effort—not quick fixes. “We are not downgrading the importance of Zika,” Pete Salama, executive director of WHO’s health emergencies program, explained to Science. “By placing it as a longer-term program of work, we are saying Zika is here to stay and WHO’s response is here to stay.”

The Zika virus causes only mild symptoms in those who contract it, and many never know they’re infected. But it has been linked to microcephaly, which means that pregnant women who contract the virus can give birth to children with severely shrunken heads and brains.

Genetically modified Aedes aegypti mosquitoes made by Oxitec were released in Piracicaba, Brazil, earlier this year.

Good news, then, that a proposal to release genetically engineered mosquitoes in Florida to fight the virus has finally been given the green light. The initiative seeks to test whether modified Aedes aegypti insects developed by the British company Oxitec can be effective in limiting the spread of Zika. Its mosquitoes, which are male, pass on a gene to their offspring that causes them to die before adulthood, causing the population of insects to plummet.

The U.S. Food and Drug Administration had already approved the trial, but a public vote earlier this month saw locals split on the issue. Mosquito control officials in Florida have decided to go ahead with the tests, though the final site for the experiment has yet to be confirmed.

Meanwhile, the New York Times reports that the quest to find a vaccine for the virus continues. In total, at least 12 companies are now working to develop a vaccine, as well as numerous academics and researchers at the National Institutes of Health and beyond.

Researchers are confident that they can make one. “Without being presumptuous, most of us in the field feel that we will get a vaccine for Zika,” Anthony S. Fauci, the director of the National Institute of Allergy and Infectious Diseases at the NIH, told the Times. And indeed, human trials have already begun.

The bad news is that nobody knows how long it will take to find one that's reliable. Clearly, the WHO thinks that it could take some time.

(Read more: Science, Stat, New York Times, “Zika Attacked an Unborn Baby’s Brain as Doctors Watched,” “Florida Vote Spells Uncertain Fate for Genetically Engineered Mosquitoes,” “U.S. Government Starts Test of Zika Vaccine in Humans”)

Keep Reading

Most Popular

A Roomba recorded a woman on the toilet. How did screenshots end up on Facebook?

Robot vacuum companies say your images are safe, but a sprawling global supply chain for data from our devices creates risk.

A startup says it’s begun releasing particles into the atmosphere, in an effort to tweak the climate

Make Sunsets is already attempting to earn revenue for geoengineering, a move likely to provoke widespread criticism.

10 Breakthrough Technologies 2023

Every year, we pick the 10 technologies that matter the most right now. We look for advances that will have a big impact on our lives and break down why they matter.

These exclusive satellite images show that Saudi Arabia’s sci-fi megacity is well underway

Weirdly, any recent work on The Line doesn’t show up on Google Maps. But we got the images anyway.

Stay connected

Illustration by Rose Wong

Get the latest updates from
MIT Technology Review

Discover special offers, top stories, upcoming events, and more.

Thank you for submitting your email!

Explore more newsletters

It looks like something went wrong.

We’re having trouble saving your preferences. Try refreshing this page and updating them one more time. If you continue to get this message, reach out to us at customer-service@technologyreview.com with a list of newsletters you’d like to receive.