The CDC now estimates that COVID-19 infections are growing or likely growing in 43 states, with none declining and seven showing no change, according to modeling current as of August 5. That is a broader footprint than the regional signal reported earlier this summer, and it arrives while national respiratory illness activity overall remains at low levels.
The two facts are not in conflict, and understanding why is the point. The estimate describes direction, not burden. It says infections are increasing in most of the country. It does not say hospitals are filling or that emergency departments are strained.
For most households, that combination calls for awareness rather than alarm. For a smaller group, including adults 65 and older, immunocompromised people, and those with multiple chronic conditions, a broad growth signal in early August is a practical reason to confirm two things now: current vaccination status and a clear plan for accessing antiviral treatment quickly if symptoms start.
The Signal Behind the 43-State Estimate
The figure comes from the CDC's Center for Forecasting and Outbreak Analytics, which models the time-varying reproductive number using emergency department visit data reported through the National Syndromic Surveillance Program. When that number sits above one, infections are growing because each infected person is causing more than one new infection on average.
The CDC's epidemic trend page is explicit that this measure indicates direction only and does not reflect disease burden, which is why the agency advises reading it alongside other metrics rather than on its own. The trend categories themselves are probability thresholds rather than case counts, as the agency explains in its methods notes.
There is a seasonal reason to take it seriously anyway. Summer COVID increases have been a recurring pattern in the United States since 2020, driven in part by indoor congregating during heat, travel, and gatherings.
One structural note affects how the rest of this picture reads. CDC epidemic trend estimates for influenza and RSV ended for the 2025 to 2026 season on June 5 and will not resume until the 2026 to 2027 season. COVID trend data continue to update through the summer. So the current absence of flu and RSV signals partly reflects a seasonal reporting pause alongside genuinely low activity.
Regional Wastewater Picture
Wastewater monitoring typically leads clinical data because it detects virus shed by people who have not sought care and by those with no symptoms at all.
Earlier this summer, MedicalDaily reported that wastewater levels were concentrated in the South and West, consistent with the CDC's summer outlook identifying those regions as most likely to see early transmission. The 43-state growth estimate suggests that pattern has widened rather than shifted.
Readers can check their own state on the CDC's respiratory virus activity page, which displays wastewater levels, emergency department visit percentages, and state-level activity categories. State health departments often publish more granular local data.
Severity indicators are worth reading separately from transmission indicators. The agency's COVID forecast ensemble projected COVID at roughly 0.3 percent of emergency department visits for the week ending August 8, up from 0.21 percent for the week ending July 25, with about 1,900 new hospital admissions forecast against 1,400 reported for that earlier week. Those are modest absolute numbers, and they are rising.
Older Adults and Immunocompromised Households
Risk is not evenly distributed, and saying otherwise would misrepresent the data. Emergency department visits for COVID have historically run highest among infants and adults 65 and older, and hospitalization rates concentrate in the oldest age group.
For adults 65 and older, people with weakened immune systems, and those managing several chronic conditions at once, an infection carries meaningfully higher stakes than it does for a healthy 30-year-old. Households caring for an older relative are the ones for whom this signal should translate into action.
Two questions are worth settling before anyone in the household gets sick. The first is whether the person is up to date on COVID vaccination under current recommendations, which is a conversation for their clinician or pharmacist. The second is whether there is a fast path to antiviral treatment, since oral antivirals work best when started early. Knowing in advance which clinic, telehealth service, or pharmacy can prescribe on short notice removes a delay that often costs the treatment window.
People without insurance can ask a local health department or federally qualified health center about low-cost vaccination and testing. Patients facing a coverage denial for antivirals can ask a prescriber about appeals and assistance programs.
Reasonable Precautions for Late Summer
Nothing in this data supports a return to broad restrictions, and nobody should read it that way. What it supports is proportionate, targeted caution.
Testing before visiting an older or immunocompromised relative is a low-cost step that catches the exposure route that matters most. Staying home while symptomatic protects the people most likely to be harmed. Improving ventilation during indoor gatherings and choosing outdoor settings where the weather allows reduces transmission at minimal inconvenience.
Masking in crowded indoor settings remains a reasonable individual choice for high-risk people and their close contacts, particularly during travel.
Anyone with symptoms should consider testing, particularly if they are in a higher-risk group or will be around someone who is. Difficulty breathing, chest pain, confusion, or a rapidly worsening condition requires urgent medical evaluation regardless of test results.
The CDC updates respiratory illness data weekly, and flu and RSV trend reporting resumes in the fall. Vaccine composition and recommendations for the coming season will be finalized before then. MedicalDaily will report when hospitalization data, not just transmission estimates, begin to move substantially.
The honest summary is that transmission is increasing broadly while severity indicators remain low, and those two things can change independently. Households with a high-risk member have the clearest reason to act on the first without waiting for the second.
Key Questions Answered
What did the CDC actually report? Modeling estimates that COVID infections are growing or likely growing in 43 states, declining in none, and unchanged in seven, as of August 5.
Does that mean a wave is coming? Not necessarily. The estimate measures direction of transmission, not burden. National respiratory illness activity remains low, and the CDC advises reading this metric alongside hospitalization and emergency department data.
Why are flu and RSV not showing activity? Activity is genuinely low, and CDC epidemic trend reporting for flu and RSV ended for the season on June 5. Those updates resume in the 2026 to 2027 season.
Who should take extra precautions now? Adults 65 and older, immunocompromised people, those with multiple chronic conditions, and households caring for someone in those groups.
What is the single most useful step for a high-risk household? Confirming vaccination status with a clinician or pharmacist and identifying in advance where antiviral treatment can be obtained quickly, since oral antivirals work best when started early.
Should healthy adults change their plans? Most do not need to. Testing before seeing a vulnerable relative and staying home when symptomatic address the highest-value exposure routes.
Where can I check my state? The CDC's respiratory virus activity page shows state-level wastewater and emergency department data, and many state health departments publish local dashboards.
