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spinbaby

(15,306 posts)
4. Small things seem to make a big difference
Sun May 3, 2020, 10:25 AM
May 2020

Population density.
Population mobility.
Population age and health.
Face masks.
Are greetings kisses, handshakes, or bows?
Even ventilation systems factor into the equation.

And, of course, testing and contact tracing.

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