My 19yrsold had ebv 3 mos ago. her current cbc was normal except her alp41,mcv79,mch24,5,mchc 31. prior to ebv infection numbers were normal .did ebv cause it? what to do to improve her immune system ? should she quit tennis team( she is #2 line up)?

Blood tests: There are a few diseases that leap out from blood tests. Most of the time, however, blood tests don't tell the doctor much on their own. These results fall into the second group. They also don't sound alarming. Increasing iron in the diet would be a good start. Numbers alone would NOT be a good reason to quit the team. If a doctor has cleared her for contact sports, that would be fine.