Yes. A fever is one of the common symptoms of COVID-19, but you can be infected with the coronavirus and have a cough or other symptoms with no fever, or a very low-grade one — especially in the first few days.
Many people who are infected have more mild symptoms like a scratchy throat, stuffy or runny nose, occasional mild cough, fatigue, and no fever. Some people have no symptoms at all, but they can still spread the disease.” Fever seems to be one of the more common early markers of COVID-19, Kline noted.
Although a fever is a common symptom of this virus, it's still possible to have COVID-19 without a fever, especially within the first few days after being infected.
A dry cough is one of the most common coronavirus symptoms, but some people may have a cough with phlegm (thick mucus). It can be difficult to control your cough but there are a few ways to help.
Symptoms may appear 2-14 days after exposure to the virus.
Common symptoms of COVID-19 respiratory infections in the airways and lungs may include severe cough that produces mucous, shortness of breath, chest tightness and wheezing when you exhale.
Green and cloudy: viral or bacterial infection
A lot of the symptoms of viral infections – fever, cough, headache, loss of smell – overlap for COVID-19 and other viral infections like the flu, respiratory syncytial virus and the common cold.
A cough that occurs without a fever may be due to irritation in the throat or the inhalation of a foreign object. If a person does not notice an improvement in their cough after several weeks, they should consult a doctor for a diagnosis and appropriate treatment.
Most people with COVID-19 have a dry cough they can feel in their chest.
About one-third of people with COVID-19 experience a cough with mucus (phlegm). This is due to lung congestion that can occur during the infection and persist even after it resolves. Your lungs and airways can start to produce extra phlegm when you catch a virus like COVID-19.
Most people with COVID-19 get better within a few days to a few weeks after infection, so at least four weeks after infection is the start of when Long COVID could first be identified. Anyone who was infected can experience Long COVID.
All of the variants, including omicron BA.5, cause similar COVID-19 symptoms: runny nose. cough.
Those with severe COVID-19 may remain infectious beyond 10 days and may need to extend isolation for up to 20 days.
The time from exposure to symptom onset (known as the incubation period) is thought to be two to 14 days. Symptoms typically appeared within five days for early variants, and within four days for the Delta variant. The incubation period appears to be even shorter – about three days – for the Omicron variant.
A test cannot tell how contagious you are.
Testing positive for COVID-19 means you have pieces of the virus in your body.
Dozens of conditions can cause a recurrent, lingering cough, but the lion's share are caused by just five: postnasal drip, asthma, gastroesophageal reflux disease (GERD), chronic bronchitis, and treatment with ACE inhibitors, used for high blood pressure and heart failure.
CORONAVIRUS (COVID-19): Cough
Stay hydrated by drinking plenty of water and fluids. Use pillows at night to elevate your head for a dry cough. Take cough drops to soothe your throat. Use a cool mist humidifier with water only.
Remember that your cough will be better on some days, worse on other days and at different times of the day.
"A cough is considered chronic if it persists longer than eight weeks," explains Dr. Safdar. "At that point, we start to worry whether the cause might be a chronic health condition that needs to be addressed."
You should see a doctor if your cough brings up yellowish-green phlegm or blood. A cough that doesn't produce mucus is called a dry or nonproductive cough. Acute cough is the least serious type of cough. It only lasts for three weeks or less and will most likely clear up on its own.
Irritation is typically the cause of a dry cough no fever and can end up causing distress, thanks to continuous coughing. Rather than an infection, most of the dry cough causes are thought to be allergies, acid reflux, asthma, or recent infection that you've recently recovered from that has left a lingering cough.
Does coughing up mucus mean you're getting better? In most cases, coughing up mucus means your body is working to fight off an infection, and it is in the healing stages. Drink plenty of fluids to help thin the mucus.
After a positive test result, you may continue to test positive for some time. Some tests, especially PCR tests, may continue to show a positive result for up to 90 days. Reinfections can occur within 90 days, which can make it hard to know if a positive test indicates a new infection.
Because COVID-19 is an illness caused by a virus, a COVID-19 sore throat may look and feel like other viral sore throats. One clue that you have viral pharyngitis is that it is often accompanied by other common symptoms.
Your infectiousness is highest 1 day before the start of your symptoms and begins to wane about a week later for most people. The Omicron variant has a shorter incubation period, compared to other variants. For the Omicron variant, the incubation period is 1 to 4 days.