http://www.pnas.org/site/authors/procedures.xhtml#significan...
http://journals.plos.org/ploscompbiol/s/submission-guideline...
PLoS says "The goal is to make your findings accessible to a wide audience that includes both scientists and non-scientists", and PNAS says it is meant to "explain the relevance of the work in broad context to a broad readership."
In reality it was a chemical of some sort found in green tea (and elsewhere) that seemed to counteract zika. But it required concentrations that you would never find in nature.
- The journalist isn't supposed to be a copy-paste robot. Even if the press release contains big claims, the journalists should be blamed if they don't do fact-checking. An example from the recent times (and not scientific): If the conman is claiming to be a bitcoin founder, the serious journalist aren't supposed to just repeat his claims.
- The "layman summary" as in "relevance" is impossible to be realistic for most of the basic research. Is research relevant if it can be applied in 10 years? In 20 years? 100 years? How can you even estimate when it can be applied? The realistic estimate of the application of the research is possible only if the research is targeted at the short-term goals. Which is then more engineering than science. But if you include long term view, then what could be "possible" is typically not what the "public" understands ("but you said we will be able to use x and where is it now you liars.")
- The scientists should actually be somehow also motivated not to exaggerate the applicability of their research, as a force against their reasonable and real motivation to do so. We should be able to let the researchers do the research even if we don't expect the immediate "use." Otherwise we don't support the science, just solving the shortest-term problems.
"Is this a single study or a systematic review / metaanalysis? If it's the first then ignore it. It's more likely false than true."