- Jun 20, 2014
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Didn’t they just say antibodies wear off in like a month leaving you open to get infected a 2nd time? Didn’t some famous world leader get it a 2nd time?
Here's my non-scientific explanation: antibodies are made to fight off the disease and they remain active in your system for several months afterward, but it is normal for them to taper off. Your "memory" T cells will recognize if the disease tries to infect you again and produce antibodies to fight that disease off. Sometimes you can still have mild disease, but it should not be serious. However, not all immune systems are equal and it is possible that in rare cases people could be reinfected if the immune system does not recognize and fight off the disease as expected. In general, this should lead to some level of immunity, even though there may be rare cases of reinfection.