Tasha, No: The population control instituted by China is distinct from the concept of herd immunity in a population. The later is the number of persons either Vaccinated against a disease or who have had, survived, and have antibodies that make them immune. It is A level of immunologically protected citizens sufficiently extensive that an infectious disease can not take hold. Control measures attempt to restrict the expansion of an infectious disease by controlling its routes of expansion. So really ... apples and oranges, as we say.
@Md sazal miah, thankyou for that wonderful and informative response kind sir. It really sets out and highlight the strategy employed by china vs the strategy being employed by the rest of the world. Although there is no one way of doing things bit the chinese govt. Did it purposefully and effectively to the curb the pandemic.
Faris Khan, in case of MD Sazal Miah non-scientific report, we cannot say that would be enough or wonderful unless we receive proofs.
This is the same question, I had been asking since a longtime.
Well, I'm sharing another recent research paper,
They have conducted research somehow in a well-manner, in case of herd immunity, they concluded that people will be gained acquired immunity upto 67% (assuming that), but in case of secondary infection, what will be the future of old ones or those who have weak immune system? Then we have to prepare ourselves to lose huge population or our loved ones. Isn't it? What will be the exact fatality rate?
There is no country or district where herd immunity for Covid-19 can be seen. In areas with highest penetration only some 15% of the population has antibodies for Covid-19. For herd immunity that stops the spreading of a highly infectious virus like Covid-19, there should be at least 60% and maybe 90% penetration. In most countries affected with Covid-19 penetration is very low. It is about twice as many people have been infected as is known from tests. Covid-19 mortality ratio is about 1%. It is not everywhere the same as it depends on doctors, equipment and patients, but it ranges from 0.45 to 1.5%. In order to reach herd immunity against such a virus you can calculate that about 1% of the population would die. The correct way to reach herd immunity is vaccination. Vaccinate 90% of the population as soon as a vaccine against Covid-19 becomes available. This may take a year. Until that time social distancing and other already tried and effective measures should be applied. When carefully applied they do not need to harm the economy very much.
It is important to note here, as a final comment to this string, that even if a far larger percentage of a population show antibodies resulting from a mild or moderate case of COVID-19 there is no guarantee that will result in long-term immunity to future infections. We do not know at this point the degree to which immunity is affected or how long it will last.
I'm impressed with the valuable inputs from everyone on this platform, we have a long way to go in our fight against covid19 until then we have to live alongside it. Thankyou for all the contributions here :). Lots of learning.
Attempts to reach ‘herd immunity’ through exposing people to a virus are scientifically problematic and unethical. Letting COVID-19 spread through populations, of any age or health status will lead to unnecessary infections, suffering and death.