COVID-19 is an illness caused by a constantly evolving virus, leading to new variants. These variants can present with different symptom profiles compared to initial strains. Understanding these shifts helps in recognizing current infections and managing public health responses.
Symptoms Associated with Current Variants
Current COVID-19 variants, such as Omicron sub-variants like Stratus (XFG) and Nimbus (NB.1.8.1), typically present with symptoms resembling common respiratory illnesses. Most people experience low-grade fever, a dry cough, and fatigue. Other reported symptoms include a sore throat, runny or stuffy nose, and headaches.
Muscle or body aches are also common among those infected. Some variants, particularly Nimbus, have been associated with a notably painful sore throat. Less common symptoms can include mild chest discomfort, gastrointestinal issues like nausea, vomiting, or diarrhea, and changes in voice. Symptom presentation varies, and not everyone will experience all signs.
How Symptoms Differ from Earlier Variants
COVID-19 symptoms have evolved since the pandemic’s early stages. While initial strains often caused a prominent loss of taste or smell, this is less common with current Omicron sub-variants. Early variants also frequently led to more severe lower respiratory tract symptoms.
Current variants often produce symptoms resembling a common cold or flu, such as congestion, sneezing, and a runny nose. Unlike a common cold, COVID-19 often includes fever, significant fatigue, and body aches. Flu symptoms tend to be more sudden, with a high fever and chills, distinguishing it from COVID-19.
When to Get Tested and Seek Care
If you experience symptoms that could be COVID-19, testing is recommended, especially if symptoms persist over 48 hours or after exposure to a positive case. Rapid antigen tests provide quick results, though a negative result may require repeat testing after 48 hours if symptoms continue. PCR tests remain the most accurate for confirming infection.
Isolate if you test positive for COVID-19 to prevent further spread. Stay home until symptoms mostly resolve and you are fever-free for 24 hours without medication. Seek medical attention if symptoms worsen, especially difficulty breathing, persistent chest pain, or a high fever lasting over three days. High-risk individuals, like those over 75 or immunocompromised, should contact a healthcare provider promptly if positive, as they may be eligible for specific treatments.