More baby steps good news.
There was a legitimate question and fear that you would not gain immunity from exposure to the virus and that it could reinfect you. It is good that has not been put to rest.
When you add up how fast these baby and big steps have coming, how many different companies all through the world are working on this, the literally trillions of dollars thrown at this, and the advances we have available such as genetic mapping which were not available even a decade ago, the time frame of a vaccine this fall and treatments this summer seems not only possible, but likely.
At least three labs have said that they are confident of a vaccine this September, and one said initially a million doses.