Comments by "Xyz Same" (@xyzsame4081) on "Timeline - World History Documentaries" channel.

@dennish3962 SARS describes the symptoms that a few (corona) viri can cause. It means Severe Asymptomatic Respiratory Syndrome. It is NOT to be conflated with "corona virus" (which one of the many that exist ? and were never called SARS because they are harmless for humans, would that be ?). I am not sure but the term SARS might be also used for SEVERE infections caused by OTHER categories of viri (or maybe even bacteria). in the case of the corona virus that jumps over from camels they called it MERS not SARS - Middle Eastern Respiratory Syndrome. It is a form of SARS (severe symptoms, terribly severe).
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@Suzanna Koizumi patterns for individually adjusted masks * there is a channel of a fabric shop (Fabric Patch) they made around 167,000 masks for firemen, ambulance drivers and shared their experiences and insights. channel of Fabric Patch: What we've learned after making 167,000 masks!!! When they were done with that war like effort (women also used to knit socks for soldiers during Civil War or WW1) they continued to give instructions for made to measure masks for family and friends. An engineer improved the pattern they worked with. (The perfect fit "Jesse" mask). They measure the distance between nose bridge and chin. And between the ears. So how long, wide the mask has to be. That means also masks for children are possible, and they can fit the face of an individual really well (I think they have 8 - 10 different sizes and also give instructions to adjust if you are in between sizes).
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@dennish3962 Not all forms of The Plague were that deadly. CoVid-19 would have a higher mortality rate w/o modern medical treatments. A lot of people survive because of intense care. or never go critical because of the treatments given in normal hospital care. They give blood thinners and oxygen. Even those simple measures likely prevent a lot of deaths. The version of the corona virus that is known as MERS kills at least 30 % of the infected (under first world medical intense care, mind you). We are lucky that it is not very contagious between humans (so far !). In a modern hospital environment, if they know what they deal with, they can contain it. An unlucky person dealing with camels or being nearby catches the virus. With normal interactions they can infect a few more unlucky. Then the epidemiologists and doctors jump into action and stop the flare up. There are no harmless / undetected cases of MERS, the chains of infection are very obvious. That makes it easier to contain it. If the persons get good hospital care around 60 - 70 % can survive, but many of them also have ongoing health problems later. They could not eradict the corona virus that causes MERS (likely the bats reinfect the camels, and they cannot prevent that from happening). I am not sure, but I think the camels are O.K. when the virus infects them. The bats are doing well with it for sure. They are flying hubs for infections (and have an immune system that can deal well with it all).
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@dennish3962 No there are many viri that cause the common cold and some of them come from the family of corono viri. The strains that usually infect humans are harmless. They cause the sniffles or the common cold (flu is more severe, dangerous and another virus category). Other corona viri only infect animals . Trouble starts usually when an animal infecting corona virus (there are many) jumps over to another species. could be other animals OR between animals and humans. Also the other way round. Humans could transfer a virus to chimpanzees that kill the apes but would be harmless for a human. There is transfer with close contact (dealing with the animals) the feces are spread, etc. (for instance bat feces could drop on lifestock in an enclosure and the animals eat grass or there are trees with fruit, etc.) The direct contact infections often are severe. Things can get REALLY bad when the new targets can pass it on among themselves. Must not be, but it is also not uncommon. Bats give the virus to camels, it is either harmless for them or they do not get sick at all (camels are valuable their owners would have noticed). So far not yet a problem. BUT: camels open opportunities for the virus that it did not have when it travevelled only by bat. Humans usually do not interact a lot with bats, and are are less likely to mistakenly ingest their feces. (In China there are caves that are used by bats and if there is a downpour the local farmers working in the fields might go there for shelter. Or the farmers were so poor in the past that they developed a tradition of having bat soup, and they still eat that even though their nutrition has improved. ..... There you go. In ? 2013 a version of a animal corona virus likely jumped from bats to dromedars and camels (or correctly in 2013 humans got into trouble and found out about the jump). Camels can pass it on to humans - mostly if they have contact with the camels or if someone handles fodder, etc. It also can be transmitted between humans but is not very contagious between humans. Lucky us - the mortality rate with top class modern medicine is 30 %. The timeline was: The corona virus now also travels by camel. And then it turns out it can also infect humans who get it from camels (or there is another new mutation that allows that) and humans DO have severe symptoms. Camels seem to be immune to all the usual kind of human cold viri (including that out of the corona class) that infect humans: they have lived with humans long enough. Or the susceptible camels have not made it into the gene pool. So camels do not catch bad infections from humans but now the opposite is possible. One version of a switch (corona specialized in animals hops over to humans) caused problems in 2002 / 2003. SARS-Cov-1 was stopped as an epidemic (the virus does not exist in the population anymore, likely they have samples in labs, but not in the wild). It caused severe problems in some Asian countries, one traveller arrived in Canada, but was quarantiened. It was stopped before it became a pandemic. This time in Jan. 2020 a more contagious mutation of the already circulated SARS-CoV-2 emerged. It was even more contagious than the strain that caused problems in China. And the new strain promptly replaced the former one. By March it conquered the world. W/o that mutation it might never have become a pandemic (but remained an epidemic in Asia) and we would be blissfully ignorant that we dodged a bullet (another one, there were several in the last 25 years).
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It was recommended before .....
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