Dr. Tom Frieden Profile picture
Global health leader and epidemiologist. President and CEO of @ResolveTSL. Former @CDCgov director and @nycHealthy commissioner. Focused on saving lives.
Ken Tancrous Ⓥ 🌱 Oy Vey Profile picture John Saunders Profile picture Annette Profile picture Giovani di Gesu Profile picture 65 added to My Authors
Jul 29 18 tweets 4 min read
As monkeypox cases rise, it's important to be clear about how we got here, how this virus spreads, and who is at risk of infection *now*. We must act fast—and work together globally to find and stop health threats BEFORE they get out of control. 1/thread Unlike Covid—which was novel—monkeypox has been spreading for more than three decades in Africa. Unfortunately, scientists' warnings about the virus weren’t heard and they didn’t get the resources needed to better understand and stop this neglected disease. 2/
Jul 14 5 tweets 2 min read
The BA.5 subvariant is causing a new Covid wave in the US and far too many older adults are not as well protected as they could be. Unfortunately, that means we'll see more hospitalizations and deaths in the coming days and weeks that could have been prevented. US adults aged 50 and older with two booster doses had 4X less risk of dying from Covid, compared to people who received one booster dose. Compared to unvaccinated people in the same group, people with two booster doses had 42X (!) less risk of dying. bit.ly/3wq3wsI
Jul 4 9 tweets 2 min read
Independence Day Thoughts on Freedom and Health 🇺🇸
U.S. history has many wrongs, including genocidal treatment of original inhabitants, slavery, persistent racism, discrimination against women & more

BUT: there’s also lots to celebrate, including progress toward freedom.1/thread FDR famously committed to Four Freedoms: Freedom of speech, freedom of worship, freedom from want, and freedom from fear. @AmartyaSen_Econ extended these: Political freedoms, economic capacity, social opportunities, transparency guarantees, and security. 2/
Jun 8 6 tweets 3 min read
Which of these statements is NOT true?
A. High blood pressure kills 10 million people/yr.
B. Hypertension is #1 cause of shorter life expectancy in Black people in US.
C. The US has made progress decreasing sodium intake.
D. People in communities consuming low sodium have no HTN. Results are in, and most people got it right!

A is true: High blood pressure is the world's leading killer, and yet it's preventable through reduced sodium intake and treatable with effective, low-cost medication. Image
May 21 12 tweets 4 min read
Detection of monkeypox is a timely reminder that preparedness is crucial. A new health threat could emerge anywhere in the world at any time. Countries need to respond quickly and effectively. Here’s what you should know now. 1/thread Monkeypox is a rare viral disease endemic in West and Central Africa. It spreads mostly through direct contact with infected animals and can spread from person to person. It may also be able to be transmitted through the respiratory route. bit.ly/3sL0P48 2/
May 14 19 tweets 4 min read
More public figures have announced they’ve tested positive for Covid in recent days, correlating with yet another rise in US cases. Who’s at risk of getting infected, reinfected, hospitalized, and deathly ill? How well do vaccination and prior infection protect us now? 1/thread Test positivity has risen to 10% in the US, indicating that transmission is increasing—and that a lot of infections aren’t being diagnosed. bit.ly/3kWoNVx 2/
Apr 22 23 tweets 5 min read
As masks come down and cases go up, it’s worth revisiting how deadly Covid is at this moment in the pandemic. 1/thread We’re in a much different place now than two years ago. Now, the virus is more contagious but less virulent, we have a wall of immunity from vaccination and previous infection, and better tests, treatments and disease surveillance. 2/
Mar 25 18 tweets 7 min read
Covid is the most visible pandemic of our lifetime, but it isn’t the deadliest. Heart disease is twice as deadly as Covid at its worst, kills at a younger age, and is preventable. Here’s how. 1/thread on.wsj.com/3DfFTpY In the US, we too often think of health as strictly the result of individual choices. Individuals can do a lot to stay healthy, of course. But the bigger issue is what we do *as a society* to make healthy choices easier. 2/ on.wsj.com/3DfFTpY
Mar 9 5 tweets 3 min read
To mark International Women's Day, I'd like to share just a few of the many women in public health who inspire me. Their leadership has saved lives around the world. #IWD2022 Dr. Matshidiso Moeti (@MoetiTshidi) is the first woman elected as Regional Director for @WHOAFRO and has done terrific work improving detection of and response to a range of infectious diseases, including Ebola. Africa and the world are safer because of her leadership.
Mar 3 19 tweets 4 min read
The White House released a comprehensive new plan to increase public health preparedness so we’ll be ready for whatever Covid may throw at us next. They make the fundamental point: We control Covid so it doesn’t control us. 1/thread It’s crucial we adapt our response to changing levels of risk. The Omicron flood has receded. Cases have plummeted to a small fraction of January’s peak. Test positivity rates are steadily declining. Hospitalizations and deaths are also falling. 2/
Feb 24 4 tweets 1 min read
Covid cases and hospitalizations have continued to plummet in the US. No one knows for sure what comes next, but at this stage of the pandemic, it's helpful to think about what's certain, likely and uncertain. 1/4 Certain: We're better able to handle Covid than at any other point in the pandemic, thanks to more immunity, more vaccines, more tests, more treatments, a better understanding of masking, and more surveillance, including genomic surveillance. 2/4
Jan 29 23 tweets 7 min read
Although deadly new Covid variants could emerge, I'm more optimistic today than at any point since the pandemic began. Here’s why. 1/thread Despite pandemic fatigue and rough weeks ahead as Omicron crests, we're better defended against Covid than ever. Vaccines and prior infection steadily strengthened our immune defenses. We now have a wall of immunity, though we have lost far, far too many people to get here. 2/
Jan 25 7 tweets 2 min read
About 60 million people in the US over age 5 haven't yet been vaccinated against Covid. Here's a breakdown of who they are based on the latest CDC data, and who I'm most worried about. 1/thread One-third of unvaccinated people are kids ages 5-11 who recently became eligible. Another third are young adults (ages 18-39) who are less likely overall to seek health care. These groups could benefit from vaccine protection but aren't at high risk of dying from Covid. 2/
Jan 15 25 tweets 6 min read
Omicron is causing a TSUNAMI, not a wave, of infections in the US. No one knows what will come next with Covid, but we can make a big difference now by taking simple actions to shield the vulnerable & protect health care. Here's where we are—and where we might be headed. 1/thread We’ve learned a lot about Omicron in the past two months. It’s stunningly transmissible and has left Delta in the dust. Omicron is far less likely than Delta to cause severe disease, especially in people who are vaccinated and boosted. 2/
Jan 7 23 tweets 4 min read
Some have criticized CDC’s guidance on isolation for people who test positive for Covid. I believe it’s basically correct, though they could roll it out better. 1/thread Last night I explained what the new guidance means for you if you get Covid. Now I’m going to tackle why the guidance makes sense from a public health perspective. 2/
Jan 6 13 tweets 2 min read
No one wants to spread an infection to someone who could get seriously ill or die from it. If you test positive for Covid or have symptoms, it’s important to stay home and isolate. I’ll try to clarify CDC’s guidance on what you should do if you get Covid. 1/thread The reality is that Omicron is out of control in the US. Because of this, critical services are at risk of disruption, including our health system, schools, and transportation. We MUST save both lives and livelihoods. 2/
Dec 24, 2021 23 tweets 4 min read
What will happen with Covid in 2022?? There’s SO much we don’t know about Omicron and the future of Covid. I outline 12 questions and reveal how we can avoid Covid dominating our lives in 2022. Here we go… 1/thread Question 1: How much severe illness will Omicron cause in different risk groups? People who were previously infected, those with or without vaccination, and people who have gotten boosted, by age group. Looks less severe, but only time will tell. Let’s dive into severity. 2/
Dec 18, 2021 21 tweets 5 min read
A tidal wave of Omicron will hit the US and other countries at the worst possible time—holidays approaching, health systems strained from Delta, flu starting, many feeling pandemic fatigue. If we get our response right, Covid won't dominate our lives in 2022. Here’s how. 1/thread It’s astonishing how quickly Omicron is spreading and leaving Delta in the dust. It may be one of the most contagious viruses we’ve ever seen. New case records have already been set in South Africa and the UK and are inevitable in the United States 2/
Dec 11, 2021 16 tweets 5 min read
What are the facts on Omicron? The picture is getting clearer: Omicron spreads faster and is better able to escape immunity than other variants. Severity is still unknown, although it's likely vaccination reduces severe disease. The virus has adapted; we must as well. 1/thread Today’s technical briefing from @UKHSA has a wealth of info. Encouraging to see quick research and action from scientists and health agencies in South Africa, UK & other places, and CDC. Too little credit often given for great work under great pressure. bit.ly/31QLILV 2/
Dec 10, 2021 8 tweets 3 min read
Covid vaccines are safe, effective and continue to be our best protection. Breakthrough infections are expected. We’ve learned a lot about who’s at risk for severe breakthrough, including from good CDC data. With this information we can protect people better. 1/thread Studies show lower vaccine effectiveness against severe Covid among older adults, people with immunocompromising conditions, and people with certain comorbidities—groups already at higher risk of hospitalization and death from Covid. 2/
Dec 2, 2021 11 tweets 3 min read
Uncontrolled spread gives Covid opportunities to evolve. The emergence of Omicron has highlighted the urgency of addressing low vaccination coverage in Africa and other places. Lack of supply has been a major barrier for months, but it's not the only one. 1/thread Most people in high-income countries have been fully vaccinated but less than 10% of Africa’s population has. That puts the entire world at higher risk of new, potentially dangerous variants. Here are some of the challenges beyond supply that countries face. 2/