- Joined
- Dec 31, 2007
- Posts
- 60,871
- Reaction score
- 14,641
- Points
- 113
A few comments about last week's statistics:
There's a few things to consider:
By allowing the virus to circulate unchecked, Brazil has created a new variant that is more contagious than the virus strain that circulated in 2020 and people who were infected with the 2020 strain are not immune to the new variant, so Brazilians are getting COVID-19 again.
The level at which "herd immunity" or "community immunity" is reached for SARS-CoV-2 is a theoretical concept. It's actual number is not known, although most epidemiologists estimate that about 70-80% of the population will need to be immune to arrest the continued spread of the virus. The vaccines have been far more effective in reducing the number of infections and particularly, the death rate in the US than the foolish attempts at "herd immunity" via infection with the virus.Week ending 15-May-2021:
- Approx number of US residents vaccinated - 1st dose: - 156,217,367 (up from 151,315,505 / 4,901,862) - 47.34% of US population
- Approx number of US residents vaccinated - 2nd dose: - 121,768,268 (up from 112,626,771 / 9,141,497) - 36.90% of US population
There's a few things to consider:
- "Immunity" is the sum of people vaccinated plus people who have immunity because they were previously infected by the virus.
- "Herd immunity" is a concept and there's been a lot of focus on it. Because the Moderna and Pfizer vaccines provide about 90% immunity to the virus, the infection and death numbers started declining greatly because the US prioritized the vulnerable, elderly and healthcare workers in December and January. Targeting the high risk populations is why the death rate declined much faster than the new case numbers.
- The immunity conferred by infection with the virus may be incomplete and temporary. With most of the new variants, the vaccines seem to be very effective but the immunity from actual infection may not provide immunity to variants.
- Because the vaccines have only been approved for children and adults 12 years and older, there will remain a population that is vulnerable to infection.
India had 2,480,231 new cases last week. That's a mind-blogging number. With a 1-2% estimated mortality, that will mean that between 24,000 to 48,000 people will be dying every week, far more than the 27,937 they reported.Coronavirus weekly cases/deaths in active countries (preference to countries with JUB members):
- India: 24,372,907 (up from 21,892,676 / +2,480,231 / 11.3%) - 266,207 deaths (+27,937) - avg daily: cases (+354,319) / deaths (+3,991)
Brazil has allowed 434,715 people to die from COVID-19- second only to the US. The population of Brazil is only 211 million, so this makes the mortality rate higher in Brazil than in the US.
- Brazil: 15,586,534 (up from 15,145,879 / +440,655 / 2.9%) - 434,715 deaths (+13,399) - avg daily: cases (+62,951) / deaths (+1,914)
By allowing the virus to circulate unchecked, Brazil has created a new variant that is more contagious than the virus strain that circulated in 2020 and people who were infected with the 2020 strain are not immune to the new variant, so Brazilians are getting COVID-19 again.
Japan is still planning on conducting the Olympics in July, 2021. They've only vaccinated about 2% of their population. Ooops.
- Japan: 679,870 (up from 635,568 / +44,302 / 7.0%) - 11,424 deaths (+628) - avg daily: cases (+6,329) / deaths (+90)

