How many serotypes of African Horse Sickness are there?

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Multiple Choice

How many serotypes of African Horse Sickness are there?

Different serotypes are defined by how the immune system recognizes the virus, which depends on variation in the outer capsid protein VP2. For the African Horse Sickness virus, there are nine distinct serotypes identified. This matters because immunity to one serotype usually doesn’t provide strong protection against the others, so vaccines are designed to cover multiple serotypes. The nine serotypes reflect the antigenic diversity seen in real-world strains, guiding both vaccine formulation and outbreak control strategies.

Different serotypes are defined by how the immune system recognizes the virus, which depends on variation in the outer capsid protein VP2. For the African Horse Sickness virus, there are nine distinct serotypes identified. This matters because immunity to one serotype usually doesn’t provide strong protection against the others, so vaccines are designed to cover multiple serotypes. The nine serotypes reflect the antigenic diversity seen in real-world strains, guiding both vaccine formulation and outbreak control strategies.

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