Get the latest market trends in your inbox

Stay on top of the latest market trends and economic insights with the Axios Markets newsletter. Sign up for free.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Denver news in your inbox

Catch up on the most important stories affecting your hometown with Axios Denver

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Des Moines news in your inbox

Catch up on the most important stories affecting your hometown with Axios Des Moines

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Minneapolis-St. Paul news in your inbox

Catch up on the most important stories affecting your hometown with Axios Minneapolis-St. Paul

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Tampa-St. Petersburg news in your inbox

Catch up on the most important stories affecting your hometown with Axios Tampa-St. Petersburg

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Our Expert Voices conversation on emerging diseases.

New technologies allow us to observe cross-species transmission in ways we could not before, but we lack the fundamental understanding of the relationship between virus genetics and transmission in humans to distinguish the next Ebola or HIV from viruses that pose no threat.

Influenza viruses are a microcosm of this process. There are thousands of confirmed instances of humans being infected, sometimes fatally, with non-human flu strains; but only a handful of strains have adapted to cause human epidemics. However, those that do adapt can be devastating, as was the 'Great Influenza' of 1918, which killed 20-100 million people in only a few years. The 1918 flu pandemic and others were likely preceded by multiple instances of animal-to-human transmission of related viruses.

Bottom line: We are the first generation with the tools to observe this pre-pandemic 'viral chatter' between species, but we will be unable to develop any sort of pandemic early warning system until we better understand how the genetics of viruses relate to their ability to transmit in humans. Doing this for influenza could establish the fundamental biological theory needed to identify, and perhaps stop the next HIV or Ebola before it happens.

Other voices in the conversation:

Go deeper

10 mins ago - Politics & Policy

Congressional Hispanics want Lujan Grisham at HHS

Michelle Lujan Grisham arriving on Capitol Hill. Photo: Tom Williams/CQ Roll Call

Hispanic lawmakers are openly lobbying to have New Mexico Governor Michelle Lujan Grisham be named Health and Human Services secretary, according to a letter obtained by Axios.

Why it matters: These members are now following the example some Black lawmakers have used for weeks: trying to convince Joe Biden his political interests will be served by rewarding certain demographic groups with Cabinet picks.

3 hours ago - World

Map: A look at world population density in 3D

This fascinating map is made by Alasdair Rae of Sheffield, England, a former professor of urban studies who is the founder of Automatic Knowledge. It shows world population density in 3D.

Details: "No land is shown on the map, only the locations where people actually live. ... The higher the spike, the more people live in an area. Where there are no spikes, there are no people (e.g. you can clearly identify ... the Sahara Desert)."

Biden's Day 1 challenges: The immigration reset

Illustration: Aïda Amer/Axios

President-elect Biden has an aggressive Day 1 immigration agenda that relies heavily on executive actions to undo President Trump's crackdown.

Why it matters: It's not that easy. Trump issued more than 400 executive actions on immigration. Advocates are fired up. The Supreme Court could threaten the Deferred Action for Childhood Arrivals (DACA) program, and experts warn there could be another surge at the border.