Federal modeling now estimates that COVID-19 infections are growing or likely growing in 50 states, with none declining and none holding steady. The figure comes from the Centers for Disease Control and Prevention's epidemic trend estimates and reflects data through August 12.
That is a meaningful shift from a month ago, when the same model placed 37 states in the growth category and 11 in the unchanged category. What has not changed is the severity picture. The CDC describes emergency department visits for COVID as very low, and its respiratory virus activity levels pages continue to place national activity at the low end of the scale.
Both of those things are true at once, and holding them together is the whole point of reading this number correctly. Direction is not the same as burden. The model indicates the virus is spreading more widely than in June. It does not say that more people are getting seriously ill.
The Measurement Behind the Fifty State Figure
The estimate is not based on case counts. Those are no longer collected the way they were during the pandemic emergency, and the CDC has been explicit that this metric is built on something else.
The agency models the time-varying reproduction number, Rt, using emergency department visit data reported through the National Syndromic Surveillance Program, with a nowcasting adjustment for late-arriving reports. When Rt is above 1, each infected person, on average, infects more than one other person, meaning infections are growing. The CDC states plainly that epidemic trends indicate direction only and do not reflect disease burden, and that they should be read alongside other metrics rather than in isolation.
One detail is worth noting for readers checking the map themselves. Some coverage has reported that no estimate was displayed for Iowa, which sits awkwardly alongside a 50-state count. The CDC does not estimate Rt for jurisdictions with low emergency department participation, incomplete diagnosis information, or fewer than 10 relevant visits in the prior two weeks, and its state counts include the District of Columbia. The agency's own page reports 50 in the growth category, with zero declining and zero unchanged; that is the figure used here.
The Two Wastewater Systems That Currently Disagree
Wastewater surveillance is usually the tiebreaker in situations like this because it detects infections in people who never get tested and never seek care. Right now, it is producing a genuine conflict, and readers deserve to know that rather than being handed a single number.
The CDC classified national wastewater viral activity as very low in its most recent posting. WastewaterSCAN, a monitoring program run through Stanford, classifies national SARS-CoV-2 activity as high with a significant upward trend over the preceding three weeks. Amanda Bidwell, the program's scientific program manager, told TODAY that concentrations so far this month are up 106 percent compared with July, with the West and South highest.
The two systems sample different sites, use different laboratory methods, and set their thresholds differently, so a divergence of this size is not evidence that either is wrong. It does mean a single wastewater headline should not be treated as settled. On the CDC's map, Hawaii and Mississippi currently show moderate levels, with Mississippi's data described as limited.
The Numbers That Actually Track Illness
Two federal figures speak more directly to whether people are getting sick enough to need care, and both are modest.
Emergency department visits attributed to COVID-19 accounted for 0.31 percent of all visits for the week ending August 8. The CovidHub ensemble forecast projects that the figure will rise to about 0.43 percent for the week ending August 22, with a 95 percent prediction interval running from 0.25 to 0.59 percent. Laboratory-confirmed hospital admissions were about 1,800 for the week ending August 8, with roughly 2,400 forecast for the week ending August 22 and a range of 1,700 to 4,000.
Those are increases, and they are increases from a low base. The CDC has separately noted a longer-term decline in COVID hospitalizations nationally, while cautioning that a larger rise remains possible, particularly if a variant emerges that immune systems no longer recognize well. Its scenario modeling had anticipated this pattern, projecting summer increases in the South and West because those regions saw relatively little COVID activity last winter. MedicalDaily previously reported that the model showed infections growing in 37 states, with none declining.
The Households with a Reason to Act on This
Risk in this wave is concentrated, not universal. Adults 65 and older, people who are immunocompromised, pregnant people, and adults with chronic heart, lung, kidney, or liver conditions or diabetes carry most of the severe outcome risk. For a healthy adult under 50 with no risk factors, a rising Rt is a reason to be aware, not a reason to change plans.
For higher-risk households, three practical steps are worth taking while activity is still low rather than after it peaks. Confirm whether you are eligible for a current COVID vaccine and discuss timing with a clinician or pharmacist, keeping in mind that the FDA has selected an XFG strain for the formulation intended for use this fall, which is a separate decision from what is available today. Confirm you know how to obtain antiviral treatment quickly if you test positive, since these medications work best when started early. And keep tests on hand rather than sourcing them mid-illness.
Symptoms in this wave resemble those of other recent Omicron descendants and usually appear within a few days of exposure. Sore throat, cough, fatigue, congestion, fever, and body aches are common. Trouble breathing, chest pain or pressure, confusion, difficulty staying awake, or bluish lips or face warrant urgent evaluation.
What remains unknown is how high this wave will go, whether hospitalizations will follow the trend line of emergency visits, and how the wastewater disagreement will be resolved. The CDC updates the epidemic trend estimates weekly, and MedicalDaily will report on the next several updates and on the fall vaccine rollout.
Key Questions Answered
What did the CDC actually report? Its epidemic trend model estimates that COVID infections are growing or likely growing in 50 states, with none declining and none unchanged, based on data through August 12.
Does that mean cases are surging? No. The metric indicates direction only. The CDC reports that emergency department visits for COVID-19 are very low.
Where do these estimates come from? Emergency department visit data reported to the National Syndromic Surveillance Program, modeled to estimate the reproduction number Rt, with an adjustment for late reports.
Why do wastewater reports disagree? The CDC puts national wastewater activity at very low, while WastewaterSCAN classifies it as high. The program samples different sites and uses different methods and thresholds.
Who faces the highest risk? Adults 65 and older, immunocompromised people, pregnant people, and adults with chronic heart, lung, kidney, or liver disease or diabetes.
Is a new vaccine coming? The FDA has advised manufacturers that vaccines for use beginning this fall should target the JN.1 lineage XFG variant. Eligibility and timing are questions for a clinician or pharmacist.
When should someone seek urgent care? Trouble breathing, chest pain or pressure, confusion, difficulty staying awake, or bluish lips or face.
