Delay in post-infectious recovery

Specialty: General.

• prolonged post-viral asthenia
• delayed convalescence
• chronic post-infectious syndrome

Why it occurs

• Post-viral fatigue syndrome (dysregulation of the clearance of cellular debris and persistence of viral fragments or latent viral RNA that perpetuates microglial and systemic immune activation)
• Occult secondary opportunistic bacterial infections (chronic post-viral sinusitis, bacterial bronchial superinfection or asymptomatic dental abscess)
• Transient or permanent immunological deficiency of cellular or humoral immunity (selective deficiency of IgA or IgG subclasses that prolongs pathogen clearance)
• Severe physical deconditioning acquired during the prolonged rest of the acute infectious phase (rapid loss of muscle mass and oxygen transport capacity)
• Reactive depression post-acute illness (psychological reaction of vulnerability to temporary loss of health).

Initial workup

Complete blood count with platelet count and smear, quantitative C-reactive protein, erythrocyte sedimentation rate, quantitative serum immunoglobulins (IgG, IgA, IgM), chest x-ray in two projections, and sputum or urine culture if localized signs persist.

Standard management

• Avoid repeated empirical use of antibiotics without bacteriological confirmation
• Paracetamol — 500 mg orally every 8 hours if minor residual myalgia persists and prevents rest
• Supplementation with Zinc (15 to 30 mg orally per day) and Vitamin C (500 mg per day) to optimize tissue repair and residual immune processes.