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Reminder: Respiratory viruses infect huge numbers of people all the time, and nobody cared about this until 2020

Perspective from a 2018 New York study that tested a bunch of healthy adults for common respiratory viruses. Over 6% tested positive.

eugyppius | May 2, 2022

The ever-sharp Zacki on Twitter points to this intriguing 2018 study out of New York. The authors administered PCR tests to 2,685 people at a tourist attraction in New York City, between the months of January and July. Over 6% tested positive for one of seven common human respiratory viruses. In the winter, human coronaviruses were the most common; in the summer, rhinoviruses took the lead. By design, the study targeted healthy populations, and so we must imagine that it substantially understates the true rate of virus infection.

The authors don’t find a significant difference in the overall prevalence of positivity between winter and summer. In their small sample, it’s only the mix of viruses that changes. This is another piece of evidence in favour of my crazy theory, that a great part – perhaps a majority – of spring and summer allergies are in fact persistent low-grade rhinovirus infections.

Other studies, particularly on rhinovirus, find even larger incidences of infection. There is this paper, which looks at rhinovirus in infants and finds that 20% of their sample are asymptomatic positives; or this case-control study of all ages, which finds rhinovirus in 17% of their asymptomatic controls.

For perspective: At the height of the alpha wave in the United Kingdom, only about 0.3% of the population was testing positive for SARS-2 every day. School antigen testing in Germany, which is done multiple times a week and finds nearly every detectable infection in school-age children, found Delta 7-day incidences of around 1%, and Omicron 7-day incidences peaking in February at near 4% in specific age cohorts (see the the graph on p. 5). The allegedly hypercontagious SARS-2 looks like it was doing substantially worse, in other words, than garden-variety human coronaviruses in the same month in the New York study.

Respiratory viruses are extremely pervasive; they’re everywhere and this is totally normal. What isn’t pervasive, is virus testing. We’ve only ever tested widely for a single virus. So much of Corona mythology depends upon presenting data in isolation from what we know about the behaviour of all the other pathogens we’ve lived with for centuries. Our governments have spent two years hyperventilating about incidences of infection that turn out to be minuscule, or at worst normal, when compared to the other pathogens that infect us. This should also make you very, very sceptical of uncontrolled studies cataloguing alleged Long-Covid symptoms. If we tested this widely for rhinovirus, imagine all the totally unrelated symptoms we’d find in our vast pool of positive results.

May 2, 2022 - Posted by | Science and Pseudo-Science, Timeless or most popular |

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