I discovered over the past week that there’s something special about a hurricane blackout in the middle of a pandemic. Your friends can offer you Wifi and an extension cord, but you have to stay outside on the porch, so that no viruses jump from host to host.

Aside from the weather, things still feel oddly stable in Connecticut. Since last month’s email, our daily cases have remained relatively low. Right now the seven-day average of daily new cases is 72. We’re averaging 1 death a day. That’s good compared to Florida, with 6440 daily new cases and 160 deaths a day. Continue reading “Friday’s Elk, August 12, 2020”

The pandemic continues, but let me kick off this edition of Friday’s Elk by sharing some personal good news. My next book has a cover!


One of the long-running threads in my career as a writer has been a fascination about the fundamental nature of life. What does it mean to be alive? Is there even such a thing as life? Each of us knows what life is from the inside, but how can we turn that intuition into science? For my new book, Life’s Edge, I explored the border zones of life, where it becomes clear how much we have to learn. The book features Covid-19, tardigrades on the moon, hungry pythons, and much more.

The book won’t be coming out till March 2021. But you can already pre-order your copy. (There’s also an audio book available for pre-order.)

I’ve said it before and I’ll say it again: pre-ordering a book is one of the best ways to support an author. You’re not just buying a copy of the book itself. Lots of people in the book world keep tabs on pre-order numbers. Good numbers build buzz, and buzz will draw more attention to a book when it publishes.

Right now, March 2021 feels like centuries hence. Let’s hope that it’s an improvement on July 2020, when more than 128,000 people have died of Covid-19 in the United States alone. Here in the northeastern United States we are currently experiencing unsettling calm. Connecticut reached a peak of Covid-19 cases in April, with 2,109 people testing positive in just one day. But then the cases started to gradually fall. On July 3 Connecticut only had 71 new cases. So far, 4,326 people have died in our state, but over the past week the daily death count hasn’t risen above the single digits.

Elsewhere in this country, however, the virus is raging. In Arizona, California, Florida, and Texas–places that seemed to dodge the northeast’s devastation–new cases are climbing steeply every day. The climb far outstrips the increase in testing, indicating that this is a real outbreak and not a statistical artifact. The rise in hospitalizations tells the same heart-breaking story.

This surge has not yet led to a surge in deaths; in fact the daily death rate across the country has fallen from over 2,300 in April to 722 on July 2. That may be the result of younger people getting infected these days while older people–who are more likely to die–are taking better precautions. It may also be the result of American hospitals getting better at fighting this new virus, using new combinations of drugs and abandoning old treatments that worked for more familiar diseases. But another factor is the lag of several weeks between surges in cases and surges in deaths. It can take a while for this virus to kill. And so the death rate will almost certainly rise again this month.

Even if it doesn’t, that’s hardly cause for wild celebrations. Europe has crushed its curve, while we have failed. Tens of thousands of deaths so far were almost certainly preventable. And it’s also becoming clear that surviving Covid-19 is not like bouncing back from a cold. For some people, it leaves enduring damage, whether lung scars, heart damage, strokes, enduring fatigue, or diabetes. Since we’re only a few months into this pandemic we don’t yet understand extent of these impacts, but it would be grotesque to sweep them away in false optimism.

Right now, I worry that peaceful places like Connecticut are getting complacent. This virus can be particularly devious, spreading even before people show symptoms. And one infected person can, in the right place, infect dozens of others. Last week I wrote about what scientists are learning about these superspreading events, and how we might use that knowledge to fight the virus without having to go into blanket lockdowns.

On a brighter note, I worked with some of my Times colleagues this month to track the many efforts going on worldwide to make a vaccine for Covid-19. We started with 20 projects–all the clinical trials that had already started, plus some of the promising efforts that have not yet led to tests on people. Less than a month has passed since the tracker launched, but we’ve added ten more vaccines now in clinical trials, including ones being tested in Japan, India, and other countries. We will keep updating it with progress (and failure) until this race is done.

Finally, here’s a video of a conversation I had recently with Scientific American editor-in-chief Laura Helmuth about science writing in the age of Covid-19. I hope you enjoy it. Someday I look forward to giving talks in person, but Zoom will have to do for now.

That’s all for now. Stay safe!

My award-winning book, She Has Her Mother’s Laugh, is available in paperback. You can order it now from fine book mongers, including AmazonBarnes and NobleBAMHudson Booksellers, and IndieBound.

You can find information and ordering links for my 13 books here. You can also follow me on TwitterFacebookGoodreads, and LinkedIn. If someone forwarded this email to you, you can subscribe to it here.

Best wishes, Carl

Originally published July 3, 2020. Copyright 2020 Carl Zimmer.

Each month brings another grim harvest. When I last sent out a newsletter on May 1, the United States had suffered 64,203 deaths from Covid-19. Today the total has reached 108,708. As researchers probe the overall death rate, the full toll of the pandemic continues to come into sharper focus.

Countries and states that went into lockdown over the past couple months are now starting to loosen their controls. It seems as if a lot of people think this means that the pandemic is over. But there are still plenty of new covid-19 cases every day, and these folks could potentially infect a lot of other people if they board a bus, teach a yoga class, join a choir practice, or do any number of other things that have been shown to let the virus spread quickly from person to person. Continue reading “Friday’s Elk, June 5, 2020”

It’s been another hard month. When I last sent out a newsletter on March 29, the United States had suffered 2,201 deaths from Covid-19. Today the total has reached 64,203.

That is the official count, but the full count is far higher. In cities like New York, the total number of deaths has jumped well above the average rate for this time of year. There aren’t enough tests to go around, so we’re not getting a full count of the sick. Many people are dying at home. Continue reading “Friday’s Elk, May 1, 2020”

Greetings from lockdown.

Four weeks ago, I wrote in shock about 100,000 cases of Covid-19 around the world. As of today, there are 691,867. The United States has overtaken China as the nation with the most cases (125,313), and the exponential curves in states across the country foretell many, many more cases to come. So far, 2,201 people have died of Covid-19. More will die. How many is in part up to us. Continue reading “Friday’s Elk, March 29, 2020”