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originally posted by: DBCowboy
a reply to: Locutis1704
People will say the flu is lower because of masks and social distancing.
But then they'll say Covid is higher because people aren't wearing masks and social distancing.
It's confusing.
originally posted by: DBCowboy
a reply to: Locutis1704
People will say the flu is lower because of masks and social distancing.
But then they'll say Covid is higher because people aren't wearing masks and social distancing.
It's confusing.
That's the situation we're in right now. The amount of mask wearing and social distancing we're doing is enough to stop influenza but only enough to slow COVID-19 down.
originally posted by: 1947boomer
That's the situation we're in right now. The amount of mask wearing and social distancing we're doing is enough to stop influenza but only enough to slow COVID-19 down.
originally posted by: 1947boomer
originally posted by: DBCowboy
a reply to: Locutis1704
People will say the flu is lower because of masks and social distancing.
But then they'll say Covid is higher because people aren't wearing masks and social distancing.
It's confusing.
You may be confused because you don't understand exponential growth. I wrote about this yesterday. I'll repeat the short version here.
The course that an infectious disease in the population will take at any particular time is determined by a parameter known as the basic reproduction number (Rt) at that particular point in time. If Rt is larger than 1.0, that means that on the average an individual who has the infection will pass it on to MORE than 1 other individual, and the disease will grow exponentially over time. If Rt is less than 1.0, that means that on the average an individual who has the infection will pass it on to LESS than 1 other individual and the disease will die out exponentially.
In the absence of any actions to control the spread of respiratory diseases (mask wearing, social distancing) Rt for COVID-19 is somewhere between 2 to 6 (depending on the population density of where you live) and Rt for seasonal influenza is between about 1 to 2. The reasons for this difference in Rt is because COVID-19 viruses are about twice as contagious as influenza viruses and because about half the population already has some immunity to influenza viruses, while only about 5% now has immunity to COVID-19.
Let's say a location does enough mask wearing and social distancing to reduce the transmission of respiratory droplets to 1/2 of its normal value. That would bring Rt for influenza down to less than 1.0 in most cases, so influenza will die out exponentially. However that will only bring Rt for COVID-19 down to somewhere between 1 to 3, so COVID-19 will continue to grow exponentially--although at a slower rate than it would if there was no mask wearing and social distancing at all.
That's the situation we're in right now. The amount of mask wearing and social distancing we're doing is enough to stop influenza but only enough to slow COVID-19 down.
originally posted by: DBCowboy
a reply to: QUANTUMGR4V17Y
The thing to remember about masks is that, over time, they become great incubators for viruses.