1) massive mutation rate, altering exterior structure making a single vaccine impossible (e.g. influenza)
2) touch-based transmission, with 72 hour surface viability
3) incredibly "ugly" death process (e.g. ebola) with huge risks for health care providers
4) high death rate but very slow deaths
1) massive mutation rate, altering exterior structure making a single vaccine impossible (e.g. influenza)
2) touch-based transmission, with 72 hour surface viability
3) incredibly "ugly" death process (e.g. ebola) with huge risks for health care providers
4) high death rate but very slow deaths