BK Virus is a common virus that can infect anyone at any time but typically in early childhood. Most people (about 90%) have had BKV by the time they are adults. 

The BKV info sheet is available to view, download and print in these languages:

• BKV info: Arabic
  
• BKV info: English
  
• BKV info: Farsi
  
• BKV info: French
  
• BKV info: Hindi
  
• BKV info: Punjabi
  
• BKV info: Simplified Chinese (Mandarin)
  
• BKV info: Traditional Chinese (Cantonese)
  

Cytomegalovirus is a common virus that can infect anyone of any age in the general population. Approximately half of people have had CMV by the time they are adults.