They estimated that a primary infectious case generates approximately 3 secondary cases. Sangsawang et al [5] proposed and analyzed the SLIR model (susceptible, latent, infectious and recovered) of AHC. It found that
there are two equilibrium points; disease free equilibrium and endemic equilibrium point. The basic
reproductive number was obtained and qualitative behavior of the model was demonstrated. Aubry et al [2]
studied a Coxsakievirus A 24 hemorrhagic conjunctivitis in Marseille, France, in a traveller returning from the
Comoros Islands. This case allowed for the identification of the cause of an ongoing outbreak of hemorrhagic
conjunctivitis in India Ocean Islands, illustrating that returning travellers may serve as sentinels for infectious
disease outbreak in tropical areas where the laboratory facilities are limited. During October 2010, Egypt
reported an outbreak of AHC consisting of 1831 cases being reported from governorates. The purpose of this
study was to identify and characterize the causative agent associated with this outbreak. This study suggests that
Coxsackievirus A24 variant was the cause of the AHC outbreak reported in Egypt.