Chinese Covid-19 Vaccine Far Less Effective Than Initially Touted in Brazil

[Dangerous-Boy]

Originally Posted by Bettafish

So you know more about my family members than I do?
Ok. Go ahead.

I'm sure wiebo and pooh bear do.

[suzy_q2010]

Originally Posted by lchoro

People vaccinated by Pfizer/nBiotech and Moderna vaccines may be silent spreaders of the virus

must wear mask if vaccinated

You are probably good 1 month after and until the 6th month. Then you may need another vaccine.

There is emerging evidence that the Moderna vaccine prevents infection, which would slow transmission to others.

"However, additional data from Moderna suggest the vaccine may protect against asymptomatic infections, a key consideration in a vaccine's usefulness for preventing the spread of the virus to others. Impact on asymptomatic spread was a key question that came up in VRBPAC's consideration of the Pfizer-BioNTech vaccine, and experts say more research on the topic is needed.

Eric Topol, MD, founder and director of the Scripps Research Translational Institute, said on Twitter today that during the vaccine trial, researchers obtained nasal swabs after the first dose that showed a reduction in asymptomatic infections. He said the findings reflect an impact on blocking transmission and are very encouraging, hinting at mucosal immunity. 'The data aren't conclusive but support this key benefit,' he said."

https://www.cidrap.umn.edu/news-pers...-covid-vaccine

Also, antibodies probably last at least six months and possibly longer. Moderna is predicting at least a year.

https://www.zmescience.com/medicine/...east-one-year/

[Greysholic]

Originally Posted by Bettafish

I agree China is a developing country and there are still lots of poor people.
But in terms of infrastructure, China is by far the best among all developing countries. Not just in Beijing and Shanghai.
For example, the top 5 metro systems in the world (by length) are all in China. Among top 10, 7 are from China. Among top 20, 13 are from China. This is not just because there are rich people (rich people don't take subways)
https://en.wikipedia.org/wiki/List_o...o_systems#List.

That's part of being having a ton of people and being Asian. Asian countries are more willing to invest in infrastructure.

Originally Posted by Bettafish

China has a huge population, so a lot of "per capita" figures do not look good.

Population size has nothing to do with per capita figures. A country can has a large population size and has high per capita figures.

However, just keep in mind lots of things cannot be "averaged" and should not be "averaged". Size also matters.

Like what? Income?

[Bettafish]

Originally Posted by Greysholic

That's part of being having a ton of people and being Asian. Asian countries are more willing to invest in infrastructure.

So? China is way ahead of India, which is also in Asia and has a huge population.
Also, metro systems serve individual cities not the whole country. The top five Chinese cities are not top five cities in the world, in terms of population.

Originally Posted by Greysholic

Population size has nothing to do with per capita figures. A country can has a large population size and has high per capita figures.

That's nonsense. Countries with a huge population is hard to achieve big per capita figures, because that would require a lot of resources, exceeding the global supplies. Also, with a dense population lots of things (infrastructures, service etc.) are shared, instead of being built for each person. In addition to that, small countries can rely on just one industry, such as finance or IT, but big countries must build a whole set of industries and agriculture, and many of them are not very profitable.

That's why Luxemburg and Switzerland have a higher GDP per capital than the US.
In fact, the US does not really have a very huge population, considering its massive size. Also the US can exploit the whole world using its political and military dominance, while other big countries cannot.

Originally Posted by Greysholic

Like what? Income?

Like military. Maybe Korea (either north or south) has a much higher soldiers per capita than China (I didn't check), but in terms of military power...
Also infrastructures, research, cultural influence... they cannot be averaged in a simple way.