Given that it appears at least 2 of the United States's aircraft carriers [1] have confirmed cases aboard, I'm sure every military has been in touch with their silent service folks, if just the captains at a minimum.
While subs sometimes run silent, at least the United States ones still receive communication while doing so via VLF and even ELF. ELF at a few characters per minute can still communicate enough to have them come up just enough to to be optimal for VLF and receive whatever info. I think informing the ships about a highly contagious virus would probably rank up there with very important information.
I'm no military expert but if I had a bunch of guys in subs with finite supplies I might want to communicate "hey, maybe implement mild rationing because when you guys come home we might send you right back out after we send heavily sanitized stores out to you that you shouldn't open for a week or so.
While subs sometimes run silent, at least the United States ones still receive communication while doing so via VLF and even ELF. ELF at a few characters per minute can still communicate enough to have them come up just enough to to be optimal for VLF and receive whatever info. I think informing the ships about a highly contagious virus would probably rank up there with very important information.
I'm no military expert but if I had a bunch of guys in subs with finite supplies I might want to communicate "hey, maybe implement mild rationing because when you guys come home we might send you right back out after we send heavily sanitized stores out to you that you shouldn't open for a week or so.
- [1] https://thediplomat.com/2020/03/covid-19-cases-reported-on-b...