COVID-19 presents with a wide array of symptoms, and a fever is commonly associated with the illness. However, it is not a requirement for a COVID-19 diagnosis. Many individuals can contract the virus and experience a range of other symptoms, or even no symptoms at all.
Fever Is Not Always Present
Some individuals with COVID-19 may not develop a fever due to various factors, including their individual immune response. Vaccination status plays a role, as vaccinated individuals are less likely to develop a fever when infected. Age can also influence the manifestation of fever. Children, for instance, are less likely to develop a fever with COVID-19, with less than half of infected children experiencing this symptom. Different variants of the virus can present with varying symptom profiles; Omicron variants were less likely to cause fever compared to earlier Delta variants.
Other Common COVID-19 Symptoms
COVID-19 can manifest with a broad spectrum of symptoms beyond fever, appearing typically 2 to 14 days after exposure to the virus. A persistent cough is a common indicator, often accompanied by fatigue. Muscle or body aches and headaches are frequently reported, contributing to a general feeling of unwellness.
Respiratory symptoms can include shortness of breath, a sore throat, and congestion or a runny nose. Some individuals may also experience gastrointestinal issues such as nausea, vomiting, or diarrhea. A distinct symptom for some is a new loss of taste or smell, which can occur with or without other symptoms. These symptoms can vary in their combination and severity, from mild to more pronounced.
What to Do If You Suspect COVID-19
If you suspect you have COVID-19, regardless of whether you have a fever, it is advisable to get tested. Both PCR and rapid antigen tests can help determine if you are infected. A positive test result means the virus was detected, and you should take steps to prevent its spread.
It is recommended to isolate yourself by staying home and away from others, ideally for at least 5 days from when symptoms began or from the date of a positive test if asymptomatic. Continue to monitor your symptoms and seek medical attention if they worsen or if you experience emergency warning signs such as trouble breathing, persistent chest pain or pressure, new confusion, or an inability to wake or stay awake. Consulting a healthcare provider for personalized advice and potential treatment options is also recommended, especially if you have risk factors for severe illness.