I will be printing out a few of these and have them with me at all times.
https://www.nih.gov/news-events/nih-research-matters/lasting-immunity-found-after-recovery-covid-19
From the link: https://www.nih.gov/news-events/nih-research-matters/lasting-immunity-found-after-recovery-covid-19
"The researchers found durable immune responses in the majority of people studied. Antibodies against the spike protein of SARS-CoV-2, which the virus uses to get inside cells, were found in 98% of participants one month after symptom onset. As seen in previous studies, the number of antibodies ranged widely between individuals. But, promisingly, their levels remained fairly stable over time, declining only modestly at 6 to 8 months after infection."