Every year,, come 'bout springtime, kill plants go through a closure. It's for deep cleaning and disinfecting. Normally, it's done on a rolling basis.
From what I can glean, from a closing here and a closing there, it appears to be the same ol' same ol'.
But, of course the talky-talkers are bringing in the big bad wooly-bear, Covid-19, as the cause.
Yup, better listen to the talky-talkers.