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Does it matter that they're on the same subway line? Do all people only travel on one subway line each and never change trains?
by jhgb 5y ago
Does it matter that they're on the same subway line? Do all people only travel on one subway line each and never change trains?
- dqv 5y agoYes it matters. >Do all people only travel on one subway line each and never change trains? It's not what all people do that matters when trying to find the origin of a highly contagious virus. It only takes one person going from point A to point B to cause a pandemic.