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Sweden has joined with Portugal in determining that the PCR test as widely used all over the world since the start of the "pandemic" is not by itself fit for the purpose of identifying a potentially infectious person.

"The PCR technology used in tests to detect viruses cannot distinguish between viruses capable of infecting cells and viruses that have been neutralized by the immune system and therefore these tests cannot be used to determine whether someone is contagious or not"

They last updated this official guidance in November 2020, noting the need to assess the period of freedom from symptoms when assessing whether a person is likely to be contagious. The guidance was reviewed in April 2021 in the light of the new variants but the guidance was considered to need no update at this time.

This November update predated the guidance issued in January 2021 by the WHO, which made much the same point. Indeed the WHO issued much the same guidance in December 2020, although that web-page seems since to have been disappeared.

The subtext to all this is that an asymptomatic person is not at all likely to be infectious, even if with a positive PCR test, provided that his symptoms have been in abeyance for an appropriate length of time.

At least Sweden is now "following the science". When will the rest of the world follow?

This informative little sketch provides a very accessible overview of what is known about Covid and the inoculations - I'm not going to vouch for every last assertion but I do think it's in the right ball-park overall: