Why does Covid cause respiratory problems?

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     The Coronavirus is attracted to the ACE2 (angiotensin II) enzyme. Ace 2 enzymes are located on cells in many parts of the human body. The ACE2 enzyme helps control another protein structure present on cells that expand and contract. Blood vessels, the lungs, the heart, the intestines, even the nose has a great number of cells that need ACE2. The ACE2 enzyme helps control another protein structure present on cells that expand and contract. Blood vessels, the lungs, the heart, the intestines, even the nose has a great number of cells that need ACE2. There is a lot of ACE2 present in alveoli cells in the lungs. ACE2 keeps those cells from fighting down, or shrinking too much.

     The outside of a cell is not smooth. The outside of a cell looks more like a fuzzy tennis ball, or a coconut. Cells are coated with thousands of proteins and enzymes. These molecular structures affect or cause all sorts of reactions. The Coronavirus has appendages like arms. Each arm has a receptor that acts like a hand. The "Coronavirus hand" fits perfectly with the molecular structure of the ACE2 enzyme. They fit together like a hand into a glove. There are concentrated amounts of ACE2 in the olfactory cells of the human nose. Airborne Coronavirus (virions) get sucked into the nose. They "mate" with the ACE2 and gain entrance into the cell. Once inside, the virus substitutes its RNA "blueprint" for those of the cell. The cell then begins making new virions. The virions increase by the millions among the "friendly" cells in the nose.They are then spread into the mouth, throat and lungs.

     So much of the ACE2 is inactivated by the virus, it no longer keeps the cells from contracting. The affected structures no longer function like they should. Alveolii stop transferring oxygen to the red blood cells that pass through the lungs. People with high blood pressure, diabetes, heart disease and other afflictions have more ACE2 present. So those people are more affected from the invasion by the virus. Those people suffer the most from Covid.

         Until recently, a virus was not even considered to be a living entity. It does not have a central nervous system, so it is not a "thinking" creature. But the way that a virus develops and takes over the production organelles within a cell, is an accomplishment that requires some kind of direction. Anyone who doesn't believe a virus is a living, intelligent creature needs to examine how it reproduces. Once inside a cell it hijacks the cells construction systems to create copies of itself. The RNA of the virus replaces that of the infected cell. The recent discovery of previously unknown, new cell structures demonstrates that we are just beginning to understand cellular level activity. There is every indication that a virus is guided by something other than chance.

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How and why does a virus change its characteristics?

       Is a virus is "an accident looking for a place to happen?" The virus survives by constantly reproducing  within the cells of the creatures it infects. A bat in China, a mink in Denmark, a chicken in Mexico, a stockbroker on an elevator in New York City, all have served as living factories for the invading armies of virions (the infective progeny of the virus). ​The number of virions in a single host is staggering, and the potential for mutation exists each time one is made. Genetic codes (codons of three amino acids) on transcription RNA dictate the order of amino acids that construct the proteins that make a cell.  A change in the code of a single amino acid among millions can make a big difference in the newly constructed virus. Mistakes in this construction process are called mutations. Some mistakes weaken the virus, while others make it better. The mistakes that occurred as the Wuhan virus reproduced resulted in a better version, the Delta Variant. Mistakes that occurred as the Delta variant reproduced resulted in the Omicron Variant (The Cron). These mistakes continue to occur among the billions of cell reproductions. If the mistake results in a better virion, that virion eventually takes over. The latest positive mistake resulted in the current dominant XEC strain.

     Virologists can't agree

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