Re:Recovered virus patients retest positive due to 'dead' vi...
by mr_toad on Wednesday April 29, 2020 @07:41PM
(#23025906)
And there are hundreds of strains and types of viruses that cause colds. Immunity to a rhinovirus serotype will not help with other serotypes of rhinovirus, let alone all the coronavirus strains and influenza viruses.
You can get temporary immunity that lasts for a year or so and still be able to get reinfected multiple times in your life.