I heard somewhere about the fact that disposable face masks suddenly became the best-selling product in China in connection with the epidemic of the coronavirus from Wuhan. I think this mod may well reach us
I was surprised and decided to write a note in the author’s channel, and at the same time here. The bottom line is that, in theory, the best-selling product should be 12V bactericidal UV lamps, or “habr” -zonators for disinfecting indoor air, but not rag masks:
I immediately remembered a long-standing study, the results of which were published in the journal Lancet. The bottom line - statistically significant protection against the SARS virus was somehow provided only by surgical four-layer masks and masks of the "N95" type. Disposable paper and ordinary three-layer - are as effective as a scarf or scarf tied around the face. True, the effectiveness of the vaunted N95 was later refuted.
All that masks can help do is reduce the risk of contracting the virus through a “splash” of sneezing or coughing and provide some protection from the transmission of the infection from hand to mouth. Although most people even wear a mask, they nevertheless stick a hand under it to rub their face / scratch their nose, etc. Plus, practically everyone forgets that the mask / bandage should be changed as often as possible, a maximum of three hours, otherwise it itself becomes a source of infection. WHO also interprets about the same in its recommendations. So it makes sense to carry a cheap mask with you only in one case - to give it to a sneezing / coughing citizen, along with the recommendation "do not distribute coronavirus."
The question arises, is there any point in wearing a mask to protect yourself from viruses in the air and which one?
I answer! There is a sense to wear it, but only full-face, covering the eyes (because coronaviruses can enter the body not only through the mucous membrane of the lungs, but also through the eyes). The weak efficiency of the rag mask is precisely due to the nanoscale particles of the virus, poor fit and insufficient eye protection. The best option is an elastomeric (rubber) full face respirator with a HEPA filter on board. Well, or if not full-face, then at least a regular filter with the same HEPA filter + adjacent glasses, such as those used in pools. Well, constant hand disinfection with ethanol-containing hand gels or alcohol wipes. And in the city, keep your hands away from your face and stay away from people with flu symptoms within a meter and further ...
P.S. By the way, sneezing and coughing is only in a handkerchief or in a bent elbow. Sneezing in the palm of the hand, as a rule, the right one, we then grab hold of everything, shake hands with each other and thereby spread the infection even more than if we simply sneezed into space.
That's all for the sim, I wish you not to be sick! A sick - quickly recover!
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Chinese coronavirus. The danger of SARS
This post is purely for hype. Those who are in the subject will find information in reliable sources. The townsfolk resent and forget ... if they do not die of pneumonia, of course.
Okay, there are 27 colds in China. What does my five on infectious diseases say? She says, "hold my beer!"
To understand whether this virus is dangerous or not, you need to answer 3 questions:
1. What are we dealing with?
2. What age is sick?
3. WHO or not?
The textbook on infectious diseases Yashchuk writes us that coronavirus infection - acute respiratory viral infection characterized by rhinitis clinic and benign course (sometimes gastrointestinal disorders ̶-̶ ̶e̶s̶l̶i̶ ̶v̶y̶ ̶z̶e̶v̶n̶u̶l̶i̶ ̶i̶ ̶h̶a̶r̶ch̶o̶k̶ ̶k̶i̶t̶a̶y̶ts̶a̶ ̶p̶o̶p̶a̶l̶ ̶n̶e̶ ̶v̶ ̶t̶o̶ ̶g̶o̶r̶l̶o̶). Among all acute respiratory viral infections, it is recorded in 9-20% of cases. Indistinguishable from rhinovirus infection. Another fact is that antibodies against this virus have 80% of the population. This means that they had contact with the virus, were ill or not.
Our body produces antibodies against a particular strain for many years after contact. And in order to infect the body, the virus needs to mutate again (the horror story, in other words, form a new strain, which is mainstream for microorganisms). This is the Chinese coronavirus, it has clearly become more virulent, since it causes pneumonia instead of rhinitis, and it seems we are not immune to it.
The second option is to hit the most vulnerable organism: an old man, an infant, a homeless person, a bruise, a pregnant woman, an HIV-infected person, weary of stress, stress, stress, fear, fear, fear, stress. And here then a fatal outcome is already possible. In general, everything is the same as with any infection ... like with the flu, where 89% of the dead are 65 people. And the flu kills more people for a minute than any other infection.
In general, with age, there is one interesting theory in terms of the appearance of large influenza epidemics. They begin every 25-40 years and are sick mostly young. Why? The elders have immunity, they hurt before that. When the older generation dies, the proportion of immune people decreases - population-related immunitis declines and infections spread faster and even the chance of infection of immune people increases (increased viral load). Therefore, when a mother does not want to have a child vaccinated against polio - drive her with a stool, well, or be sick yourself.
Between the major epidemics, which is mainly caused by H1N1, which is also pork, aka iipanka, there are smaller epidemics of other strains (either they are not so virulent or antibodies to H1N1 partially protect us), not very lethal, not very common, so much so that even statistics not.
Let's answer another question - what is WHO afraid of? (New Spanish woman)
Yandex.DirectHotel near the Burdenko Research Institute!
Consider recent epidemics. It just so happened that humanity has not heard of epidemics of coronavirus. But I heard about the flu. Wikipedia data.
In Russia, 11,000 people die of influenza each year.
Around the world, 3-5 million people fall ill every year, 390-650 thousand die (mortality rate 13%)
It seems to me that it’s impossible to get the real statistics on flu, and you’ll find out why. The numbers are different, and in general, why create statistics for doctors, when you can wait until it passes and lie down at home, where sometimes you get to such a condition that you can’t save anymore. However, at the time of epidemics, the number of cases is monitored and the population is actively turning because it is so scary to fuck.
(the epidemic was already written in detail on pickab six months ago, so I will give just a few to estimate the scale)
year 2009. The acclaimed Swine Flu. 203 thousand died in the world. In Russia - 125 people, in Ukraine - 17, in Belarus - one president also suggested meowing. (yeah, less died than usual; this is strange, but we know how the pharmaceutical companies have boiled down)
1968 year. Hong kong flu 33,800 died. The same is not particularly impressive, given the population density of China. By the way, most epidemics arise there (no, nobody develops biological weapons there; just, the more the population is denser - the higher the number of infected people and the faster it grows. For the same reason, people get sick more often in cities. And you are all clean mountain air in village ...
1918. Spanish flu. 550 million fell ill, 50-100 million (14%) died. Mortality as with ordinary flu, but the scale is 200 times! more. Then 1 billion people lived on earth, half was sick.
If you compare with the Spanish, you can see that humanity is learning to deal with the spread of disease. So WHO is definitely acting right, even if it looks like it is wandering. Timely handling helps prevent death from influenza.
But what about coronavirus? Where it arose in two cities, 20 million people live and only 27 died. Where is the Chinese scale? Where are the mountains of corpses? Who got sick? Age? Social status? Related sores? But the panic.
In the event of an epidemic, I primarily recommend being afraid of HIV-infected people. It can, for natural reasons, undermine the growth of your rapidly growing population.
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