That's interesting - I haven't known of these mechanisms before in this detailed way. I looked up the German word ("Schüttelfrost") for this phenomenon in an online dictionary and the American English word "chills and fever" came up among others (a literal translation of the German word would be "shivering freeze"). Quite figurative description imo, especially as the two occur alongside each other.
This result also goes along with the descriptions posted by Abats and Keit, in how the hypothalamus of the brain acts like a thermostate to regulate our body temperature up and down not only in the normal state but especially in "extreme" states like an infection, or when the body is situated in a (really) cold (or hot) environment. The muscles are made to contract (shivering) in order to generate the heat needed to raise the body temperature in terms of fighting bugs or to just keep it warm (when situated in a cold environment).
In looking up the session
in question (from 28th of December), this quote from the Cs may be relevant here:
Now, we would like to say something of interest to all: Soon things in your realm will become very chaotic and strange. It will give chills to many. Be not alarmed! It will pass and there will be a new reality to explore. Cosmic forces will be displayed and there will be many searching for answers. Be prepared to give the help that is needed. Be together in love and peace.
Regarding the Coronavirus pandemic (mentioned by the thread starter), as I see it right now, the way how the media portrays it seems to be more of a scaremongering than a "real" pandemic on a larger scale (like the Spanish flu for ex.). But it gives chills to many already, given how many people still believe what comes through the media without questioning it. There could be a frightening (chilling) agenda behind that, i.e. making them receptive for a vaccine like the following one which is being developed in a rash program by the US National Health Institutes: Vaccine for the China virus—the planet is the guinea pig for a vast experiment
(an article about alternative treatment & preparation protocols has been posted on SOTT
, which may actually help).
Given the quoted passage, the line mentioning the chills makes me think of many other things which may be due and which will be "real" things and have the potential to send chills to many. One other example (aside from a pandemic which may indeed be one of a scale like the Black Death even) may be an impending ice age - which would give chills to many not only physically, but also in finding out how they have been lied to (global warming and Greta Thunberg comes to mind). And it would cause many to ask questions.