Yes, COVID-19 is significantly less severe for most people now than it was in 2020 and 2021. The combination of widespread immunity, updated vaccines, and changes in the virus itself means that the average infection in 2024 and 2025 carries a much lower risk of hospitalization and death than it did during the first waves. That said, the virus still poses a real threat to certain groups, and severity hasn’t dropped to zero.
Why the Virus Itself Has Changed
The variants circulating today behave differently in the body than the original strain or Delta. Research published in mBio found that Omicron and its subvariants are optimized for replication in the upper respiratory tract, meaning they tend to concentrate in the nose and throat rather than deep in the lungs. That’s a meaningful shift. The original strain and especially Delta were far more damaging to lower respiratory cells, causing more destruction of lung tissue, loss of cell barrier integrity, and damage to the tiny hair-like structures (cilia) that keep airways clear.
This doesn’t mean current variants can’t cause pneumonia or serious lung involvement. They can. But on a population level, the shift toward upper-airway replication is one reason fewer infections now progress to the kind of severe, oxygen-dependent illness that overwhelmed hospitals early in the pandemic.
Immunity Makes the Biggest Difference
The single largest factor reducing severity isn’t the virus. It’s you. Nearly everyone alive today has some degree of immune memory from prior infections, vaccinations, or both. A 2025 retrospective study found that people with hybrid immunity (at least one vaccination plus a prior infection) were at dramatically lower risk of severe disease. Specifically, individuals with no documented previous infection were 14.4 times more likely to develop severe COVID compared to those with hybrid immunity.
That’s an enormous gap, and it helps explain why 2020 was so deadly. Back then, the entire global population was immunologically naive. Every infection was a first encounter. Today, very few people face the virus without some existing immune defense, even if that defense has waned over time. The CDC has noted that symptom severity tends to depend more on a person’s immunity than on which variant they catch.
Hospitalization and Death Rates in 2024-2025
COVID still sends people to the hospital, but the profile of who ends up there has narrowed considerably. CDC data covering October 2024 through September 2025 show that hospitalization rates per 100,000 people break down sharply by age:
- Adults 75 and older: 653 per 100,000
- Adults 65 to 74: 195 per 100,000
- Adults 50 to 64: 74 per 100,000
- Adults 18 to 49: 27 per 100,000
- Children 5 to 17: 8 per 100,000
Adults 75 and older are hospitalized at 18.5 times the rate of adults aged 18 to 49. For in-hospital deaths between June 2024 and May 2025, 5% of hospitalized patients aged 65 and older died, compared to 1% of those aged 50 to 64, and less than 1% for younger adults and children. Eighty-four percent of all adult COVID deaths in the hospital occurred in people over 50.
For a healthy person under 50, the risk of being hospitalized for COVID is now very low, and the risk of dying from a hospitalization is under 1%. That’s a stark contrast to early 2020, when healthy younger adults were ending up on ventilators at rates that shocked the medical world.
How Severity Has Shifted for Children
Children were always at lower risk than adults, but the picture has still changed. During the pre-Omicron period in 2020 and 2021, studies estimated that 6% to 13% of children with confirmed infections required hospitalization. Pediatric hospitalization rates across all age groups appear to have decreased since early 2023.
A study from the American Academy of Pediatrics covering October 2022 through April 2024 found an interesting shift in who gets hospitalized. Earlier in the pandemic, 63% to 77% of hospitalized children had at least one underlying medical condition, and the median age of hospitalized kids ranged from 7 to 12 years. In the more recent data, 59% had underlying conditions and the median age dropped to 1.7 years. This likely reflects that older children have built up immune memory through prior infections and vaccinations, while very young children are encountering the virus for the first time with less immune protection.
Long COVID Risk Hasn’t Disappeared
One area where “less severe” needs a caveat is long COVID. Data from the RECOVER initiative, which analyzed over 6 million electronic health records from 2020 through 2024, found that between 10% and 26% of adults who had COVID developed long COVID. Among children, the rate was about 4%. Those are broad ranges that reflect differences in how long COVID is defined and measured across health networks, but even the lower end represents a substantial number of people dealing with lingering symptoms like fatigue, brain fog, and exercise intolerance.
Whether infections from the latest variants carry the same long COVID risk as earlier strains is still being studied. There is some evidence that vaccinated individuals and those with prior infections develop long COVID at lower rates, which would be consistent with the overall trend toward reduced severity. But the risk is not zero, and it remains one of the less predictable consequences of infection.
Who Still Faces Serious Risk
The overall picture is encouraging, but COVID severity was never evenly distributed, and it still isn’t. People over 75 bear a disproportionate burden of hospitalizations and deaths. Those with weakened immune systems, whether from medications, organ transplants, or conditions like advanced cancer, may not build the same robust immune memory that protects most people. And individuals who have somehow avoided both infection and vaccination remain at significantly higher risk than those with hybrid immunity.
For the average healthy adult, a COVID infection in 2025 is far more likely to feel like a bad cold or flu than a life-threatening event. For a 78-year-old with heart disease, it remains a serious illness that can lead to hospitalization and death at rates that would concern any physician. The virus hasn’t become harmless. It has become a much more manageable threat for most of the population, while remaining dangerous for a smaller, more defined group.