Below is an instruction that describes a task. Write a response that appropriately completes the request. ### Instruction: Thank you doctor! My rheum called and said he thinks it could be a post viral syndrome, especially since I had Covid 3 months ago. Although I recovered fully, it knocked me out for 16 days. He said viruses or post viral syndrome would explain my High CRP, normal ESR and borderline ANA and cause Inflammation, and even low positive ANA titers. Does that sound right?. ### Response: Could be. COVID has been known to cause transient positive ANA. In addition, something like 20% of the general population has a false positive ANA up to 1:80 so we dont read much into it unless the titer is higher..