These data indicate that there were 4.8 ( 95% CI: 2.8-6.8 ) undiagnosed cases for every diagnosed case of COVID-19 during this same time period in the United States, and an estimated 16.8 million undiagnosed cases by mid-July 2020
But Britain’s officials, armed as usual with some nifty charts for their televised briefing, said that for people under 30 the risks and benefits from the vaccine were “finely balanced”, so a different jab may be preferable.
The EMA’s data as of March 22nd suggested that the rate of brain clots in people under the age of 60 who had had AstraZeneca’s vaccine was one in 100,000.... Estimates of the [background] incidence of such brain clots have ranged from 0.22 to 1.57 cases per 100,000 people per year, and they are more common in younger people and women.
As doctors began to look more closely, something curious emerged. Many patients with suspected clots from the vaccine had unusually low levels of platelets. ... With this new information to hand, Britain’s medical regulators searched their data on vaccinated people for the unusual tandem of clots and low platelet counts. They found four cases per million people vaccinated, a rate several times lower than in the EU. One explanation is that Britain... had used the jab primarily in older people. ...It resembles a condition seen in some people who are given heparin, a drug used widely to treat blood clots. For unknown reasons, some people develop an immune reaction to heparin, which results in blood clotting so profound that it depletes their platelets. The same reaction appears to be provoked by the vaccine.
AstraZeneca vaccineQuoteBut Britain’s officials, armed as usual with some nifty charts for their televised briefing, said that for people under 30 the risks and benefits from the vaccine were “finely balanced”, so a different jab may be preferable.Risk from Covid is lower, while risk of clotting seems higher.https://www.economist.com/science-and-technology/2021/04/07/with-millions-vaccinated-rare-side-effects-of-jabs-are-emergingEMA = European Medicine AgencyQuoteThe EMA’s data as of March 22nd suggested that the rate of brain clots in people under the age of 60 who had had AstraZeneca’s vaccine was one in 100,000.... Estimates of the [background] incidence of such brain clots have ranged from 0.22 to 1.57 cases per 100,000 people per year, and they are more common in younger people and women.QuoteAs doctors began to look more closely, something curious emerged. Many patients with suspected clots from the vaccine had unusually low levels of platelets. ... With this new information to hand, Britain’s medical regulators searched their data on vaccinated people for the unusual tandem of clots and low platelet counts. They found four cases per million people vaccinated, a rate several times lower than in the EU. One explanation is that Britain... had used the jab primarily in older people. ...It resembles a condition seen in some people who are given heparin, a drug used widely to treat blood clots. For unknown reasons, some people develop an immune reaction to heparin, which results in blood clotting so profound that it depletes their platelets. The same reaction appears to be provoked by the vaccine.
