Here is a section from a long but interesting article that compares the CV with the 1918 Spanish flu..
..During the Spanish flu pandemic of 1918—the deadliest example of a global contagion in history—doctors struggled to explain the worldwide reach of the illness. It seemed to appear spontaneously in different parts of the world, striking the young and healthy, including (as previously mentioned) many American servicemen. Some communities shut down schools, businesses and theaters; people were ordered to wear masks and refrain from kissing their babies to stop the contagion.
But was it contagious? At the time, health officials believed that a microorganism called Pfeiffer’s bacillus caused the Spanish flu, and they were very interested in understanding how the organism could spread so quickly—and so randomly. To answer that question, doctors from the U.S. Public Health Service tried to infect one hundred healthy volunteers between the ages of eighteen and twenty-five by collecting mucous secretions from the noses, throats and upper respiratory tracts of those who were sick. The doctors then transferred these secretions to the noses, mouths and lungs of the volunteers, but not one of them succumbed. Even when blood from sick donors was injected into the blood of the volunteers, they remained stubbornly healthy.
Finally, the doctors instructed those afflicted with the flu to breathe and cough over the healthy volunteers, but none became sick. Researchers even tried to infect healthy horses with the mucous secretions of horses with the flu—yes, many animals became ill during the pandemic—but the results were the same. The Spanish flu was not contagious,21,22 and physicians could attach no blame to the accused bacterium nor provide an explanation for its global reach.
In recent years, we have witnessed a complete reversal of the reigning medical paradigm, which claims that bacteria attack and sicken us. Indeed, researchers have become increasingly frustrated in their attempts to prove that bacteria make us sick, except as co-actors in extremely unnatural conditions. We have learned that the digestive tract contains up to six pounds of bacteria, which play many beneficial roles—they protect us against toxins, support the immune system, help digest our food, create vitamins and even produce feel-good chemicals. Bacteria that coat the skin and line the vaginal tract play equally protective roles. Bacteria permeate the soil to make plant growth possible. These discoveries call into question many current medical practices, from antibiotics to herbicides to hand sanitizing.
It won’t let me link the article. You can find it on westonaprice.org “Is the Cor on a vi rus contagious?”