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In reply to the discussion: My patient caught Covid-19 twice. So long to herd immunity hopes. [View all]soothsayer
(38,601 posts)11. So people don't get dengue fever multiple times either?
Its confusing to me.
Snip
First, the trajectory of a moderate initial infection followed by a severe reinfection suggests that this novel coronavirus might share some tendencies of other viruses such as dengue fever, where you can suffer more severe illness each time you contract the disease.
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That's normal. Antibodies are the immediate response; Memory B Cells are the long-term response.
lagomorph777
Jul 2020
#51
Right - we keep seeing the story about antibodies fading, as if it's a disaster.
lagomorph777
Jul 2020
#59
Everyone is talking about a vaccine, but it's not really practical over the next year or so.
Renew Deal
Jul 2020
#63
T cells and Memory B Cells are important long-term; antobodies are always short-term protection.
lagomorph777
Jul 2020
#52
That is the issue with people who continue to test positive but are asymptomatic.
Chemisse
Jul 2020
#36
Strong vaccines sound worrisome because that really bad immune response is deadly
soothsayer
Jul 2020
#35
Got sick and then infected again 2 months later? Is it possible it was from a new mutated strain?
Baclava
Jul 2020
#49
There will always be some people with poor immune response. Too soon to say everybody is like that.
lagomorph777
Jul 2020
#50
The problem with the cold is that it's many different viruses; some of them are coronaviruses.
lagomorph777
Jul 2020
#60