Pathophysiology
- Portal of entry: Virus invades epithelial tissue of the throat and salivary glands via saliva contact. Fragile outside the host but briefly viable on fomites
- B-cell infection: Infected B-lymphocytes become enlarged and abnormal (resembling monocytes — hence "mononucleosis") and carry the virus to lymph nodes, liver, and spleen
- Latency: EBV integrates into the B-cell genome and remains dormant for life. Intermittent reactivation causes asymptomatic shedding, maintaining community transmission
- Unusually long incubation period: 4-6 weeks from exposure to symptom onset
- Splenomegaly: Occurs in approximately 50% of cases. The enlarged spleen is vulnerable to rupture from even minor trauma — a life-threatening complication
- Cancer associations: Burkitt lymphoma (especially in malaria-endemic regions), Hodgkin lymphoma, nasopharyngeal carcinoma, some stomach cancers. EBV drives B-cell proliferation that can become neoplastic
- CNS involvement (rare): Bell palsy, seizures, meningitis, or encephalitis
Signs and Symptoms
- Classic triad: Fever (102-104F), extremely sore throat, and swollen lymph nodes (cervical most affected; axillary and inguinal may also swell)
- Profound exhaustion and low stamina persisting for weeks to months after acute phase
- Pain or fullness in the upper left abdomen (splenomegaly)
- Palatal petechiae (tiny red spots on roof of mouth) or inflamed throat
- Puffy, swollen eyelids. Splotchy rash. Jaundice (liver involvement)
Red Flags
- Difficulty breathing or swallowing from severe cervical lymphadenopathy blocking airways — emergency referral
- Sudden sharp left upper quadrant pain after activity — may indicate splenic rupture. Call 911 immediately
- Penicillin-family antibiotics in a mono patient can trigger a measly rash (strep co-infection is common and often treated empirically — the rash confirms EBV)
Massage Therapy Considerations
- Acute phase: Rigorous circulatory massage is systemically contraindicated while the client is febrile and fighting the infection
- Splenic rupture risk: Deep abdominal work is inappropriate because an enlarged spleen can rupture from even minor trauma. Avoid abdominal massage for the duration of splenomegaly
- Lymphatic congestion: Bodywork must accommodate the risk of lymphatic congestion and organ involvement
- Recovery phase: Once the acute phase passes, gentle energetic work or light massage supports healing and helps manage the profound lingering fatigue
- Positioning: Clients may be uncomfortable lying flat if they have lingering throat swelling or respiratory congestion. Elevate the head or use side-lying
- Therapist safety: The virus intermittently reactivates and can be shed asymptomatically. Universal precautions apply
CMTO Exam Relevance
- EBV has an unusually long incubation period (4-6 weeks) — distinguishes it from most viral infections
- The symptom triad (fever, sore throat, lymphadenopathy) is the classic presentation
- Monospot test (heterophile antibodies) is the definitive diagnostic test. Atypical lymphocytes on differential CBC
- Splenomegaly occurs in ~50% of cases. Splenic rupture is life-threatening
- Cancer associations: Burkitt lymphoma, Hodgkin lymphoma, nasopharyngeal carcinoma
Key Takeaways
- EBV causes 90% of mononucleosis cases and remains dormant in B cells for life with potential intermittent reactivation.
- The classic triad is fever, sore throat, and lymphadenopathy. The Monospot test (heterophile antibodies) confirms diagnosis.
- Rigorous massage is systemically contraindicated during the acute febrile phase. Gentle work may help during recovery.
- Splenomegaly makes deep abdominal work dangerous due to rupture risk from even minor trauma.
- EBV is associated with several cancers including Burkitt lymphoma, Hodgkin lymphoma, and nasopharyngeal carcinoma.