I Googled "SARS immunity 20 years" and the first result is a research paper abstract[1] stating "SARS patients might be susceptible to reinfection >3 years afte

I Googled "SARS immunity 20 years" and the first result is a research paper abstract[1] stating "SARS patients might be susceptible to reinfection >3 years after initial exposure". How much effort do I spend assessing whether I believe this research paper? It's probably not what the OP had in mind since it conflicts with what they were saying. Do I make arguments from this paper (either for or against the OP's claim)? Again, it's probably not even what they were referring too. I know just asking for a source is low effort, but it often seems like the best starting point. [1]: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2851497/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2851497/