Someone wondered how the so-called flu ended up Spanish, the one that in the 1918-1919 hit all the Western world. It struck the United States, l’Europe, a limited part of theAsia but it didn’t come in Africa, Oceania e South America. That influence stopped because it came naturally to theherd immunity, that is to the fact that 500 million about of people were infected with the disease. Disease which, coincidentally, was born in such a way zoonotica.
He was probably born of a wild bird that it had contaminated some farm chickens, ducks, geese or something like that, even in the United States. This close, or in some way in connection, with the fields where the military to then arrive in Europe, after being ferried on ships, and fight there war. Just one of these navi, of the 8 who departed at some point in the winter season, was this incubator influenza.
The crossing lasted about 7 days and allowed that influence to spread. They were already arriving infected and these soldiers fell to the ground sick. This story has been studied very well because the dead were about 50 million, that is, with respect to infected the 10%. In this case, however, lethality and the mortality they coincide because they were all infected. For this reason we speak of achieved herd immunity.
It took 2 waves, because during the summer the respiratory situations of many improved, and the lethality remains at 10% therefore low compared to others pandemic. Precisely from that example we have seen that attempting herd immunity in this way involves an excessive and unbearable number of deaths. This is the reason why it comes tovaccine herd immunity, as is being done in many countries including ours with the use of vaccines.
So i vaccines what are they for? To decrease the number of deaths you would normally have had if you hadn’t used them. There history she is an excellent teacher of life, to know how to read it. Unfortunately, he doesn’t always have many students.
GeoMario, things of this world – With Mario Tozzi