'Long-COVID’ is a mysterious and awful sequela of COVID-19 infection and scientists are still struggling to get answers to basic questions like how frequently it occurs and how vaccination or reinfection affects the risk.
There is no universal agreement on how to define and diagnose ‘Long COVID’ and symptoms could vary widely from general symptoms to Respiratory and heart symptoms, Neurological symptoms, Digestive symptoms, and other symptoms. It is mostly diagnosed with symptoms such as fatigue, brain fog, or heart problems more than four weeks after COVID-19 onset.
Researchers turned into huge data sets such as the millions of medical records held by the US Department of Veterans Affairs and information from the UK Office for National Statistics.
These huge data sets allowed them to perform complicated statistical analyses to carefully match the demographics of people infected with coronavirus to an uninfected control group. However, despite such enormous strength, scientists are still not able to solve ‘Long-COVID’ mysteries. Also, people could mistake the size of the study for its quality and its validity.
Although it seems to be a while to get the ‘Long COVID’ mystery solved, there is a common agreement that getting vaccines are better than no vaccines.
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