The infectious mononucleosis is a disease caused by the Epstein-Barr virus . Mononucleosis mainly affects teenagers and young adults, but it can also affect children. The mononucleosis most often manifests as sore throat , a very great fatigue and a feeling of weakness throughout the body. The degree of fatigue can vary a lot from person to person. Some hard-hit people have to stop for a few weeks. It is […]