CD40LG and infection: Multiple studies have reported that IgM and IgG antibodies seroconverted at a median of 12 and 14 days after the onset of symptoms of SARS‐CoV‐2 WT strain infection,16 peaked at 2 to 5 weeks and 3 to 7 weeks, and remained detectable for approximately 6 to 8 weeks and at least 12 months, respectively.17, 18