"The great bulk of evidence' in this situation would mean the data on the duration of presence of Neutralizing antibodies in the blood stream of people who got rid of the virus. But this data is not there yet,as I said before.

Scientists are currently working to figure out how long the antibodies stay in the body and if they are potent enough to fight re-infections.

There is 'no great bulk of evidence' yet. Unless I'm wrong, and I hope I am.

https://www.thelancet.com/journals/lancet/article/PIIS0140-6... "For any country contemplating these issues, another crucial question is how solid is the assumption that antibodies to SARS-CoV-2 spike protein equate to functional protection?Furthermore, if presence of these antibodies is protective, how can it be decided what proportion of the population requires these antibodies to mitigate subsequent waves of cases of COVID-19?"

"Furthermore, studies in COVID-19 show that 10–20% of symptomatically infected people have little or no detectable antibody."

We need more data, which I understand scientists all over the world are working relentlessly to deliver, to believe that 'you won't reinfect once you get it'