Natural immunity - the US vs the EU approach (Israel, compared, states)

[Easternman]

It seems that the US will not accept natural recovery from Covid-19 as a proof of immunity. Americans will have to be strictly vaccinated to be eligible to attend certain venues, which is an unusual approach when compared to other developed nations.

For instance, in the EU 'Covid certificates' are being mandated since June to attend certain indoor venues and to travel freely between the member states. An EU citizen can acquire a 'Covid certificate' or 'Covid passport' by either vaccination or by proof of recovery from the virus. You simply pay a visit to your closest lab and ask for a Covid IgG antibody blood test. If your test comes back with an antibody level above 50,0 AU/ml (the internationally accepted Covid-19 immunity threshold), you are eligible for the same Covid certificate as the vaccinated individuals, including the same benefits.

There are a large percentage of individuals in Europe who came down with Covid in last year's hard-hitting third wave and the antibody level of those who recovered in the fall-winter period are generally still in the robust 300-500 AU/ml range after 8-10 months - which is in many instances higher than the antibody level of those who received the double dose of vaccines.

For example, the UK's widely used Astra Zeneca vaccine produced between 150-250 AU/ml antibody response in the healthy 30-40 age test subjects. You can examine the Oxford vaccine trial with close to 50,000 participants and see the IgG antibody responses broken down by various age groups:

https://www.nature.com/articles/s41564-021-00947-3

The question arises: why the vehement push for vaccination as the only recognized proof of immunity in the US when there is a large percentage of the population (estimated at about 50 million) that already contracted the virus? A simple blood test would show if a person qualifies for a Covid certificate - just like it's done in the EU, many Latin American countries and Israel as well.

[Spartacus713]

Originally Posted by Easternman

The question arises: why the vehement push for vaccination as the only recognized proof of immunity in the US when there is a large percentage of the population (estimated at about 50 million) who already contracted the virus? A simple blood test would show if a person qualifies for a Covid certificate - just like it's done in the EU, many Latin American countries and Israel as well.

Especially when the "vaccine" does not provide immunity, but only a reduction in symptoms in some cases. In fact, the people who have been "vaccinated" are still spreaders of the virus. Those people are not contributors to herd immunity.