The symptoms of current COVID-19 variants look very similar to what earlier Omicron strains caused: sore throat, congestion, cough, fatigue, and fever remain the most commonly reported. The virus continues to evolve, with subvariants like KP.3.1.1 and newer lineages circulating widely, but none have introduced a dramatically different symptom profile. What has changed over time is the overall pattern, with symptoms shifting to resemble a bad cold more than the lung-heavy illness of 2020.
Common Symptoms Right Now
The CDC lists the following as possible symptoms of COVID-19, noting that they can vary with new variants and vaccination status:
- Fever or chills
- Cough
- Sore throat
- Congestion or runny nose
- Fatigue
- Muscle or body aches
- Headache
- Shortness of breath or difficulty breathing
- New loss of taste or smell
- Nausea or vomiting
- Diarrhea
For most people infected with recent variants, the illness feels like a cold or mild flu. Sore throat and congestion tend to be the most prominent complaints, often appearing before a cough develops. Loss of taste and smell, which was a hallmark of earlier strains, still occurs but is far less common with Omicron-descended variants.
How Symptoms Differ From Earlier Waves
During the first year of the pandemic, COVID-19 was known for causing significant shortness of breath and pneumonia. The shift toward Omicron subvariants moved the infection higher in the respiratory tract, which is why sore throat and nasal congestion now dominate instead of deep lung symptoms. That doesn’t mean shortness of breath has disappeared entirely. It still affects some people, particularly older adults and those with underlying conditions, but it’s no longer the defining feature of the illness.
Gastrointestinal symptoms like nausea, vomiting, and diarrhea show up in a meaningful minority of infections. They sometimes appear a day or two before respiratory symptoms, which can make people initially think they have a stomach bug rather than COVID.
Incubation Period and Symptom Timeline
Current variants tend to produce symptoms faster than the original strain did. Early in the pandemic, the average incubation period was about 6.5 days. With Delta, that dropped to around 4.3 days. With Omicron and its descendants, the median is 3 to 4 days from exposure to first symptoms. Some people notice symptoms as early as two days after exposure.
Once symptoms start, most people feel better within a few weeks. A typical mild case peaks around days two through four of symptoms and gradually improves after that. Fatigue and a lingering cough can hang around longer than the other symptoms, sometimes stretching past the two-week mark even in otherwise straightforward cases.
Severity With Current Variants
Hospitalization rates have dropped considerably compared to earlier waves. When Omicron first emerged, population-level data from New York City showed a hospitalization rate of about 3.3% among those testing positive, compared to 5.2% during the Delta wave. That gap has continued to widen as immunity from vaccines and prior infections has built up in the population. For most healthy, vaccinated adults, current variants cause a mild to moderate illness.
The people at higher risk for severe outcomes are the same groups that have been vulnerable throughout the pandemic: older adults, people with weakened immune systems, and those with chronic conditions like diabetes, heart disease, or lung disease. If you’re in one of these groups, symptoms like persistent fever above 103°F, worsening shortness of breath, or confusion warrant prompt medical attention.
How It Compares to a Cold or Flu
This is the practical question many people are asking, since the symptom lists overlap so heavily. A few patterns can help you tell the difference, though none are foolproof. COVID tends to cause more fatigue and body aches relative to the level of congestion than a typical cold does. Flu usually hits harder and faster, with high fever and severe body aches from the start, while COVID symptoms more often build gradually over a day or two. Loss of taste or smell, even though less common now, still points more toward COVID than either a cold or flu.
The only reliable way to distinguish them is testing. At-home rapid antigen tests continue to work against current variants. The protein these tests detect has remained stable even as the virus mutates. For the most accurate result, test when you have symptoms rather than immediately after exposure, since the viral load needs time to build. If your first test is negative but symptoms persist, testing again 48 hours later improves reliability.
Long COVID Risk With Recent Infections
A large study from the RECOVER Initiative, covering infections through 2024, found that 10% to 26% of adults developed long COVID after infection, depending on how the condition was defined. Among children, the rate was about 4%. When researchers compared infected patients against control groups to isolate the effect of the virus itself, the excess risk was around 5% to 6% in adults and 1.5% in children.
Long COVID symptoms most commonly include prolonged fatigue, brain fog, shortness of breath, and sleep problems that persist for weeks to months after the acute infection clears. Prior vaccination, fewer total infections, and treatment with antivirals during the acute phase all appear to reduce the likelihood of developing long-term symptoms, though they don’t eliminate the risk entirely.
What the Updated Vaccine Does
The 2024-2025 COVID-19 vaccine formula targets more recent variants. CDC data from September 2024 through January 2025 showed it reduced COVID-related emergency department and urgent care visits by 33% among adults in the first four months after vaccination. That’s a modest but real reduction in the chance of an illness severe enough to send you to urgent care. The vaccine’s primary value continues to be reducing the risk of severe disease, hospitalization, and death rather than preventing infection altogether.