Swine Flu (H1N1) vs. Ebola: Key Differences in Transmission, Severity, and Prevention

Two distinct viral diseases with vastly different epidemiology.

Key Takeaways

H1N1: respiratory, highly contagious, low individual severity, vaccine available.
Ebola: contact-borne, low transmissibility, extremely lethal, outbreak control via isolation/contact tracing/vaccine.
Public response differs: flu = mitigation/vaccination; Ebola = containment/PPE/safe burial.

Feature	Swine Flu (H1N1 Influenza)	Ebola Virus Disease
Virus family	Orthomyxoviridae (RNA)	Filoviridae (RNA)
Transmission	Respiratory droplets, aerosols, fomites	Direct contact with blood/body fluids
Contagiousness (R₀)	1.2–1.6 (moderate)	1.5–2.5 (lower, but high CFR)
Incubation	1–4 days	2–21 days
Typical symptoms	Fever, cough, sore throat, myalgia, fatigue	Fever, hemorrhage, vomiting, diarrhea, multi-organ failure
Case fatality rate	<0.1% (seasonal); ~0.5% (2009 pandemic)	25–90% (outbreak-dependent)
Treatment	Oseltamivir, baloxavir (early); supportive	Supportive (fluids, electrolytes); mAb (Inmazeb, Ebanga); remdesivir
Vaccine	Annual quadrivalent flu vaccine (includes H1N1)	rVSV-ZEBOV (Ervebo) — ring vaccination
Pandemic potential	High (novel reassortment)	Low (requires direct contact)