Source: Schema.org v30.1 vocabulary. Official transmissionMethod property definition.
What does transmissionMethod mean?
How the disease spreads, either as a route or vector, for example 'direct contact', 'Aedes aegypti', etc.
Used on types (domainIncludes)
Expected value types (rangeIncludes)
Schema.org domainIncludes and rangeIncludes are descriptive guidance, not strict validation prohibitions. Check the official reference for updates.
Related reference
Browse all Schema.org types and properties · Google feature support status