It's HOT COVID SUMMER in the Deep South. No geographic/political prejudices, see next.
Covid is burning through Guam, Louisiana, Florida, and Texas (underestimate due to sites down).
PMC COVID Dashboard, July 28, 2025 (U.S.)
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It's also HOT COVID SUMMER out West. No geographic/political prejudices, see previous.
California and Hawai'i have unrelenting transmission.
PMC COVID Dashboard, July 28, 2025 (U.S.)
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New York State is mostly in the dark on COVID transmission. The CDC has most sites offline. The NYS dashboard includes the most recent estimates. It was getting bad in NYC before lights out.
Texas has fallen from High to Moderate, but it appears to be an artifact with many sites going offline this week.
High transmission sites going offline adds noise to the forecast. Uncertain times.
PMC COVID Dashboard, July 28, 2025 (U.S.)
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Today you experienced a typical day in the last 5.5 years of the pandemic, with transmission higher than 47% of days, and lower than 53%.
Typical means that in a room of 35 people, there's a 1 in 4 chance of exposure.
PMC COVID Dashboard, July 28, 2025 (U.S.)
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The year-over-year graph shows that current transmission (red line) is similar to that of 2 years ago (yellow line) and 4 years ago (blue line).
The forecast formally models year-over-year trends and recent transmission. We are estimated to soon reach 500,000 daily infections, but with low real-time data quality, regional variation, and much uncertainty.
PMC COVID Dashboard, July 28, 2025 (U.S.)
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Spain offers an illustrative example of uncertainty ahead. Wastewater data are limited to sites (albeit many) in the Barcelona area and reported monthly. XFG took off with limited warning.
The U.S. sites have much better representation and report more frequently so can spot a surge with greater warning.
Note: The variant-naming system (XFG) is not community-centered. It's jargon. Even the nickname, "stratus," is unhelpful jargon. For communities dealing with this jargon, we recommend the following memory tip:
XFG = X-FG, X-FoG, or eXtra brain FoG.
Each reinfection increases the cumulative chances of brain fog and other neurologic, vascular, and multisystemic damage. x.com/michael_hoerge…
PMC COVID Dashboard, July 28, 2025 (U.S.)
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It's a good time to stock up on masks and tests. WellBefore is my go-to brand for disposable kids' masks. I've made 2 major purchase orders the past month to donate to local kids.
I receive no preferential discounts, kickbacks, or other financial benefit from any company, including in the COVID space. I talk to many company leaders regularly and worked out the 10% discount.
Let me know if the discount code works or if you need any help with sizing.
PMC COVID Dashboard, July 28, 2025 (U.S.)
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Serious people continue to take COVID very seriously. We distributed 1,000 tests in 90 minutes today.
Serious folks mask, vax, test, and clean the air. Top health systems require universal masking.
PMC COVID Dashboard, July 28, 2025 (U.S.)
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If you found this thread helpful, please RT the first Tweet, like each post to boost, use/improve the images here and on the dashboard, and share across platforms. pmc19.com/data
U.S. CDC numbers just released. Good news (for those not in Louisiana). "Only" a 5% national increase.
2025 has closely tracked with summer 2023 transmission. A 12-13% increase would have been expected based on those numbers. That said...
real-time data have been prone to retroactive corrections. This is frustrating, of course, because it leaves people making decisions based on data that are only of good quality when 2 weeks old.
If we saw a 12% increase this week, I'd say look at 2023 for a glimpse...
at the future. Instead, I would consider these plausible scenarios:
🔹Wave still similar to 2023
🔹Later wave with schools more implicated
🔹Something temporarily much better
COVlD is surging in 7 states, according to the CDC.
🔹Hawai'i (Very High)
🔹California (High)
🔹Nevada (High)
🔹Texas (High)
🔹Louisiana (High)
🔹Florida (High)
🔹South Carolina (High)
2. PMC COVlD Dashboard, July 21, 2025 (U.S.)
Western surge:
🔹California: 1 in 63 actively infectious, much higher in LA & Bay areas
🔹Hawai'i: 1 in 35 actively infectious
🔹Nevada: 1 in 63 actively infectious
These are wastewater derived estimates, not from individual tests
3. PMC COVlD Dashboard, July 21, 2025 (U.S.)
Southern surge:
🔹Texas: 1 in 56
🔹Louisiana (New Orleans): 1 in 65
🔹Florida: 1 in 66
🔹South Carolina: 1 in 71
Again, wastewater estimates (wise indicator), not individual testing (low-quality data).
We estimate 1 in 148 Americans are actively infectious. This equates to 2.3 million infections/week, expected to result in >100,000 new #LongCOVID conditions & >800 deaths.
A room of 100 people is a coin toss of an exposure.
2) PMC COVlD Dashboard, July 14, 2025 (U.S.) 🧵
Transmission (red) is closely tracking the path of 2 years ago (yellow). However, the incoming data are spotty. >20% of CDC states have limited/no data, & Biobot hasn't reported in weeks.
Could be MUCH worse or slightly better.
3) PMC COVlD Dashboard, July 14, 2025 (U.S.) 🧵
Our model formalizes the mathematical assumptions in those predictions. If transmission follows what we know in terms of how waves grow or slow generally and historical patterns, this is what we'd expect.
The spottiness of the current real-time data reduce precision substantially. Retroactive corrections can make the forecast jump around from better to worse from one week to the next. Expect the worst. Hope for the best.
🌍Want to track COVID transmission accurately worldwide?
This PMC thread walks you through leading dashboards with information more up to date than WHO & EU directories.
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The Pandemic Mitigation Collaborative (PMC) Dashboard provides weekly COVID updates for the U.S., using wastewater surveillance derived case estimation models and analytic forecasting.
Our international directory includes official government dashboards & those developed by citizen scientists.
We exclude countries that have stopped reporting in the past 2-12 months even if on EU or WHO lists. We also exclude low-quality data from opt-in testing programs.
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🔥Biggest uptick since Jan
🔥1 in 167 actively infectious
🔥>2 million weekly infections
🔥700-1,200 resulting excess deaths from weekly infections
Track transmission closer to home w/our new state & international resources 👇
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PMC COVlD Dashboard, Jun 23, 2025 (U.S.)
🔹With >90% probability, we have entered the 11th COVlD wave.
🔹In a room of 50 people, there is already a 1 in 4 chance of an exposure.
🔹We expect nearly 15 million infections in the next month, and rising.
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PMC COVlD Dashboard, Jun 23, 2025 (U.S.)
We continue to expect transmission to break 500,000 daily infections in the U.S. around July 9th.
This is the same prediction as last week, as the forecast was dead on. Yet, there is considerably uncertainty around this timing.
Current transmission (red line) closely tracks that of summer 2023 (yellow line).
We expect to break 500k daily infections between July 9 and the end of July. Our current forecast...
2) PMC COVlD Dashboard, June 16, 2025 (U.S.)
Our current forecast is a bit more aggressive, predicting breaking 500k daily infections by July 9. The 2023 trend suggests end of July.
The 95% confidence interval shows large variation. Note that...
3) PMC COVlD Dashboard, June 16, 2025 (U.S.)
Note that CDC and Biobot both had retroactive corrections to last week's data, meaning the relative "lull" will last a little longer than the uncorrected data suggested. No big news on NB.1.8.1.