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COVID-19 is a disease caused by a type of coronavirus. This illness was first found in December 2019. It has since spread worldwide.
Coronaviruses are a large group of viruses. They cause the common cold. They also cause more serious illnesses like Middle East respiratory syndrome (MERS) and severe acute respiratory syndrome (SARS). COVID-19 is caused by a novel coronavirus. That means it's a new type that has not been seen in people before.
Your immune system may not work well because of certain medicines to treat cancer or autoimmune disease or ones needed after an organ transplant. Taking steroid medicines for a long time can also weaken your immune system. Other causes include certain health problems, as well as immune problems that run in your family.
A weakened immune system makes it more likely that you'll get very sick from COVID-19. And the COVID vaccine may not work as well for you.
Follow these guidelines until your doctor tells you it's safe to stop.
If you think you've been exposed, or you're sick, call your doctor as soon as you can. You may need a COVID-19 test. Your doctor may want to give you medicine to help prevent severe COVID-19.
Go to https://www.healthwise.net/patientEd
Enter C127 in the search box to learn more about "Learning About Preventing COVID-19 When You Have a Weakened Immune System".
Adaptation Date: 2/10/2023
Adapted By: Alberta Health Services
Adaptation Reviewed By: Alberta Health Services
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