There are 5 stages of nasopharyngeal cancer numbered from 0 to 4. If you have stage 0 nasopharyngeal cancer ... there are lymph nodes in the neck that test positive for the Epstein Barr virus (EBV).

Around 1 in 4 teenagers and young adults with EBV infection will develop mono ... Mono goes through an incubation stage of 3–6 weeks, during which the infection can spread, but a person may ...