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Why only look at Sweden?
With strict social distancing, many Asian countries have far less death rates than Sweden and resumed to normal for the most part.
Even Wuhan held a music festival a few weeks ago.
Actually prior immunity decreases the mortality rate. Even if your antibodies decay and you're susceptible to reinfection, your body will still have B cells with "memory" of the virus. They will be more effective this time around, your symptoms less severe and your sick time, less.
When your symptoms are reduced, and your sick time reduced, R0 gets smaller, less people are infected.
Err....not given. It depends on the disease. For instance herpes virus like Chicken Pox are not cleared from the body. They are held in check by the immune system and in the case of Chicken Pox it comes roaring back at old age as Shingles.
Also depends on the virus somethings can develop even worse the 2nd time around and somethings like say Hep C give no immunity at all to an 2nd infection.
Actually prior immunity decreases the mortality rate. Even if your antibodies decay and you're susceptible to reinfection, your body will still have B cells with "memory" of the virus. They will be more effective this time around, your symptoms less severe and your sick time, less.
When your symptoms are reduced, and your sick time reduced, R0 gets smaller, less people are infected.
That remains unsubstantiated for covid. Doesn't work for dengue. SARS was never allowed to spread. Obviously we all hope that will be the case. There could be asymptomatic reinfection where the second case is not caught. But so far there have been few counted reinfections, with that counting only made possible by viral mapping. The majority of so called reinfections are thought to be reoccurrences of the original infection. It's early in the pandemic. We don't want to see reinfections at this stage. Bad enough a year later.
Of the four mapped reinfections (that I know of), two were less severe, two were more severe. There was another case where the woman died but she was quite elderly? Multiple possible explanations so hopefully that means little. What counts is what covid does. Not guesstimates from a biology book even if written by medical bloggers.
Actually prior immunity decreases the mortality rate. Even if your antibodies decay and you're susceptible to reinfection, your body will still have B cells with "memory" of the virus. They will be more effective this time around, your symptoms less severe and your sick time, less.
When your symptoms are reduced, and your sick time reduced, R0 gets smaller, less people are infected.
Hasn't exactly been shown what degree immunity is for Covid. Many have seen antibodies go away.
The Spanish Flu pandemic went away due to herd immunity. By "went away" I mean the mortality rate fell after 2 years to be the same as other flu strains. That's what will happen with Covid19 and herd immunity. People will still be infected by it, but their symptoms will be less and less.
Only 27% of the US population was infected, how do you achieve 'herd immunity' with that small of a number?
Only 27% of the US population was infected, how do you achieve 'herd immunity' with that small of a number?
By already having immunity to the corona family of viruses! This has been explained MULTIPLE times now! This virus, if it even exists, is not a completely new, fully unprecedented pathogen.
By already having immunity to the corona family of viruses! This has been explained MULTIPLE times now! This virus, if it even exists, is not a completely new, fully unprecedented pathogen.
Only 27% of the US population was infected, how do you achieve 'herd immunity' with that small of a number?
The problem is you're out of your depth discussing these issues. You're not smart enough, well read enough, nor do you know what you're talking about. So in reality you should stop talking, it's just adding static and noise to this conversation.
The concept that 70-80% of people have to be infected to achieve herd immunity is a media misrepresentation. The 70-80% figure comes from mathematical formulas and the estimated R0, and says nothing about the amount of people you need to infect to reach it.
Basically, with the current estimated R0, and the assumption that a person is not infectious if and only if they're infected, you get 70-80%.
But that's not how viruses work. Some people may not be infectious even if infected with the virus. This has been documented for Covid19. And then some people infected, may still be infectious if reinfected. So it's messy, and that 70-80% figure does not apply to this situation.
One thing is for sure, as Covid19 rips through the population, the R0 is going down, and hence the threshold to achieve herd immunity is much lower than 70-80%.
Even if herd immunity is technically not reached, when 27% of the population are no longer infectious (let's assume), this greatly reduces the R0, allowing us to live with this virus without any precautions. it's then just another cold.
Err....not given. It depends on the disease. For instance herpes virus like Chicken Pox are not cleared from the body. They are held in check by the immune system and in the case of Chicken Pox it comes roaring back at old age as Shingles.
Also depends on the virus somethings can develop even worse the 2nd time around and somethings like say Hep C give no immunity at all to an 2nd infection.
Yes, it depends on the virus. Our bodies never fight off herpes for example, we develop almost a symbiotic relationship with that virus, and many other viruses.
But viruses in the coronavirus family function like this. And there is already evidence this applies to sars-cov-2 as well.
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This has been explained MULTIPLE times now! This virus, if it even exists, is not a completely new, fully unprecedented pathogen.
