Once again, the CDC changes its guidance. This is not a bad thing. They should adjust their guidance to the actual evidence. But it should also be obvious that the CDC is not omniscient and they do get things wrong. That is why it is also acceptable to use our brains and think for ourselves in these things.
It’s time to unplug the sanitizing robots and put away the bottles of Clorox that seem to line the entrances to every school, restaurant and supermarket wanting to advertise its safety protocols. While such protocols may be reassuring to an anxious populace, they are not necessary, says a revised guidance issued on Monday by the Centers for Disease Control and Prevention.
“It is possible for people to be infected through contact with contaminated surfaces or objects (fomites), but the risk is generally considered to be low,” the new CDC guidance says, estimating that the chance of contracting the coronavirus through surface transmission is lower than 1 in 10,000.
The coronavirus is spread almost exclusively by airborne and aerosolized particles, as scientists have known for months. Despite scientists’ growing certitude about how the pathogen is transmitted, many establishments have continued to insist on strict sanitization protocols. In some school districts, for example, classrooms close for full-day “deep cleaning.”
The persistence of such practices has led to the advent of a derisive term — “hygiene theater” — to describe rituals that appear to do little to stop the virus from spreading. It is not clear if the CDC’s new guidance will lower the curtain on those theatrics, given how entrenched some of those practices have become.