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BK Virus Infection

Medically reviewed by Last updated on May 6, 2024.

What is a BK virus infection?

A BK virus (BKV) infection is a common viral infection that usually does not cause problems. The BK virus may be spread if you have contact with infected blood or body fluids, such as saliva. It can spread from one person to another during an organ transplant or from a mother to her baby during delivery.

What increases my risk for problems from a BKV infection?

What are the signs and symptoms of a BKV infection?

Most people do not have any signs or symptoms of a BKV infection. The virus normally remains inactive in your body when your immune system is strong. If your immune system becomes weak, the virus may become active and you may have any of the following:

How is a BKV infection diagnosed?

How is a BKV infection treated?

A BKV infection may go away on its own without treatment. If you take antirejection medicine, your healthcare provider may change or decrease your dose. You may also need any of the following:

What can I do to prevent the spread of germs?

When should I seek immediate care?

When should I call my doctor?

Care Agreement

You have the right to help plan your care. Learn about your health condition and how it may be treated. Discuss treatment options with your healthcare providers to decide what care you want to receive. You always have the right to refuse treatment. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.