12/20/2021
I have refrained from posting on this site during much of the Covid-19 pandemic as there is so much "information" presented in the press, from government agencies, etc. Their appears to still be a basic lack of understanding among some. With that, this is a quick, "exposure 101" summary to bring things back to perspective. It's really not that complicated.... Remember three words: SOURCE.....PATHWAY....RECEPTOR
SOURCE is the infected person, a contaminated surface, or anything else that possesses the virus or other organism we need to avoild.
PATHWAY is how the organism gets into your body. In the case of COVID-19 it's primarily through inhalation. Food poisoning is via ingestion. STDs are via contact, etc.
RECEPTOR is you, or the person being exposed.
Again - SOURCE....PATHWAY.… RECEPTOR are elements of exposure. To reduce the spread we need to best address each.
SOURCE- for COVID place a surgical mask over the potentially infected person's mouth and nose where they exhale. Critics say this doesn't work because the virus is smaller than the mask holes. However, we do not breath out individual virus particles, we breath out water droplets that are much larger and can contain potentially millions of individual virus per particle. Breath in a mirror without a mask and see it fog. Breath in a mirror with a mask and see the difference.
PATHWAY - put distance between you and the source, also dilution is huge in reducing how much virus travels from the source through the pathway to you. You fart in a crowded elevator...everyone will smell it (exposure); you fart in a parking lot outside and hopefully noone will know! it's all about separation and dilution!
RECEPTOR - that's you. All masks are not the same. The same mask may be more effective on one person than another. Here is where you want FILTRATION. A surgical mask gives very little, a N-95 or KN-95 gives much, much better protection. Add the effectiveness of vaccines and your risks of serious illness or death goes down exponentially.
If anyone has actually read this far, thank you. Reduce the SOURCE, Dilute the PATHWAY, and Protect the RECEPTOR and we'll get past this!
Merry Christmas,
I Love You All,
Marshall