vivster said: Is any mitigation happening in Brazil? |
Brazil is doing some things to slow down the spread, but not enough to get the spread down.
Brazil's reported deaths have stabilized since the end of May yet remain around 1,000 deaths per day.
Reported cases are still going up, more testing is partly responsible for that yet some growth is also still going on. Reported deaths can remain stable while the infection moves more to the younger population.
Week over week growth is on average 122%, that's about 25 days doubling time if it continues like that.
haxxiy said: It's doubtful reinfection would be anywhere as severe as first infection or as contagious, even if it can happen after a year or so like for the common cold. That has been the case for all diseases introduced through trade and colonization, and also the ones that caused previous pandemics. Plasma cell-mediated antibody aren't the only way the adaptive immune system works. This is a pattern that is believed to have repeated itself for literally ten thousand years, by the way. Except for perhaps herpes, virtually any mundane disease you have contracted in your life is zoonotic and has been introduced to humans with great havoc and mortality at some point in the past. And that isn't because flu or whatever got "weaker" as some people believe. After all, there would have been no reason for pathogens to evolve that way if they had been so successful in infecting people in the first place. |
The Spanish flu came back much worse after summer, an unlucky mutation was the cause. So far it seems Sars-Cov-2 is not getting more deadly but there are signs that it has gotten more contagious. https://www.nytimes.com/2020/06/12/science/coronavirus-mutation-genetics-spike.html
Plus in fall you have flu season as well. Getting both might make things worse. And there's also the spots of permanent lung damage that Covid19 leaves behind. your body might be able to fight a second infection faster, yet the damage accumulates.
It's normal that less deadly strains come out on top since killing the host quickly is not a good survival strategy for the virus either. However, cumulative lung damage plus flu season on top, better be careful not to catch it again or at all.