Vladimir
Sorry, that long did not answer. The end of July holiday.
Of course, I'll ask technologists, but from my point of view, damage to the product of an outbreak is not harmful. Paintings and drawings by fear, basically, only prolonged heat. On this, the microscope is used cold, diode light. Museum bans are likely to relate not to the possible damage to the exhibits, and the impact of the outbreak to the sensors of security and fire alarms.
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