<s>[INST] My 2 year old son is being tested for EBV as he has had chicken pox virus symptoms for four months that have now come back negative after blood tests. We have been researching EBV on the internet and see that it can be linked to several cancers. Are the probabilities of this high if he is diagnosed with this  or could it be something less dramatic? His mother had the CNV virus during pregnancy but this was something she had contracted before she was pregnant. She has been treated for shingles about 10 years ago. [/INST] Hi, dearI have gone through your question. I can understand your concern.EBV virus is linked with many cancer like nasopharyngeal carcinoma, lymphoma etc. But in your child it is less dramatic. Infection is common and no need to worry about any cancer in your child. SO don't worry about that. Hope I have answered your question, if you have any doubts then contact me at bit.ly/Drsanghvihardik, I will be happy to answer you.Thanks for using health care magic.Wish you a very good health. </s>