According to the Centers for Disease Control and Prevention, some people who contract COVID-19 can have detectable virus for up to three months, but that doesn't mean they are contagious. When it comes to testing, however, the PCR tests are more likely to continue picking up the virus following infection.
According to the New York Times, the omicron variant of the coronavirus moves quickly, with viral levels typically peaking less than five days after the virus is first detectable. However, some people will continue to test positive for the virus even up to 14 days later.
Symptoms. People with post-COVID conditions (or long COVID) may experience many symptoms. People with post-COVID conditions can have a wide range of symptoms that can last more than four weeks or even months after infection. Sometimes the symptoms can even go away or come back again.
Any time you catch a virus and recover from the illness, you retain antibodies. These antibodies help your body fight off future infections so that you either don't get sick or have milder symptoms.
At this time, it is unknown for how long antibodies persist following infection and if the presence of antibodies confers protective immunity.
Fortunately, people who have mild to moderate symptoms typically recover in a few days or weeks.
People with post-COVID conditions can have a wide range of symptoms that can last more than four weeks or even months after infection. Sometimes the symptoms can even go away or come back again.
Known as post-acute sequelae of SARS-CoV-2 infection (PASC), or more commonly as Long COVID, these conditions affect all ages. Long-term effects include fatigue, shortness of breath, difficulty concentrating, sleep disorders, fevers, anxiety and depression.
Body aches or muscle pains may be an early symptom of COVID-19, often appearing at the very start of the illness and lasting for an average of 2-3 days. Unfortunately, COVID-19 body aches can sometimes last much longer and are commonly reported in people with long COVID-19 or post COVID-19 syndrome.
Studies suggest that reinfection with SARS-CoV-2 with the same virus variant as the initial infection or reinfection with a different variant are both possible; early reinfection within 90 days of the initial infection can occur.
It is important to remember that some people with antibodies to SARS-CoV-2 may become infected after vaccination (vaccine breakthrough infection) or after recovering from a past infection (reinfected).
If I already had COVID-19 and recovered, do I still need to get a COVID-19 vaccine? You should get a COVID-19 vaccine even if you already had COVID-19. Getting a COVID-19 vaccine after you recover from COVID-19 infection provides added protection to your immune system.