Was reading your website and slammed right into the acronym MCC but
could not figure out from the context what it stands for.

Can you explain what this means please?

Here's example of text referencing MCC...

In World War 1, those who initially survived chlorine gas attacks
sustained severely reduced MCC. This led to absence of MCC as a
defense mechanism, and these victims died of respiratory infection.

Industrial toxins include chlorine, sulfur dioxide, cupric compounds,
and many others.

Pathologic effects of dust exposure may include MCC disorder, and
disturbance of regional immunity and the acid-base balance of tissues.
These are reported by to be in direct proportion to the length of
exposure to excessive dirt and dust.

The Kuwait oil fires released polyelie aromatic hydrocarbons and
nickel and vanadium into the atmosphere. Results of this contamination
are now being studied with indications of effects on MCC. and an
increase in respiratory infections.

Formalin vapor and solutions below 0.25 % will inhibit MCC and cause
symptoms