Medical anecdote: Hey #LongCovid & #MedTwitter does low CD4 definitely mean immunodeficiency or can there be a number of factors? My results are pretty low (HIV levels), & I know this was just documented in a LC study ~ does this mean we’re experiencing immunodeficiency -or am I missing something?

Medical anecdote: Seeing a lot of lymphopenia (low CD4, CD8 white blood cells) in ER patients these days. Seems to be over represented in those getting admitted to hospital, mostly for reasons unrelated to Covid. Are any clinician colleagues seeing the same?