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Q: Is #lockdown and all this #InfectionPrevention bad for my immune system? Don’t we need to be exposed to enough colds and bugs to keep our immune systems strong?
A: Great question! This is a tricky concept for sure. Our answer in this thread
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You might have heard of the “hygiene” hypotheses, which suggests that immune-related disorders like allergy and asthma are more common today because of decreased exposure to everyday microbes in our sanitized environment.
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The key point of this hypothesis is “early exposure to a diverse range of “friendly” microbes—not infectious pathogens—is necessary to train the human immune system to react appropriately to stimuli.”
see this @PNASNews article: pnas.org/content/114/7/…
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So yes, let your kids play in the dirt, cuddle your pets, visit a farm, and don’t feel too bad about the 3 second rule.
Even if you don't have access to dirt, a few months inside will not make a measurable difference to your immune system.
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While there is NO evidence that additional exposure to infectious diseases like colds, flu, or norovirus are beneficial for the immune system. .
Too many pathogenic infections may increase the risk of inflammatory diseases later in life.
Let them eat dirt!
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1/ Q: Has almost everyone been infected with COVID by now?
A: Recent estimates suggest around 58% of the population in the US and over 70% in England have been previously infected, with BIG increases during the Omicron wave.
3/ ➡️ During the Omicron wave from December 2021-February 2022, this estimate increased from 33% to 58%.
➡️ Rates vary a lot by age, ranging from 33.2% for those over age 65 to 75% for those under age 18.
2/ Not likely. If your kids are suddenly getting sick a lot, this is likely due to “catching up” on exposures rather than a weakened immune system.
3/ Many families w/ young kids have been hunkered down for the better part of 2 years– a good % of a young child’s entire life. While isolation had *many* downsides, we can agree that not having to suction snot out of infant noses or clean up norovirus puke was a happy upside.
1/ Q: Are cases peaking? That means it’s all downhill from here, right?
A: Sort of…. Remember that even if cases come down as quickly as they rise, there will be as many cases *after* the peak as before (think area under the curve).
2/ ➡️ And if the downward slope is *slower* than the rise, we will see *more* cases during the decline from a surge.
3/ Burning fast could be a silver lining of super transmissible #Omicron. Cases rose & fell quickly in S. Africa (w/ hospitalizations & deaths still lagging). The UK appears to have turned the Omicron corner. Many US states appear past their peak in cases, w/ regional variation:
Unfortunately, this includes New Year’s Eve plans. The perfect storm of a new variant & holiday get-togethers is hitting communities & health care w/ FORCE! Testing is in short supply.
3/ Health care is under extreme pressure with surging cases. If you can avoid even one additional contact, you are helping. This is a temporary and urgent request (from a health care provider).