Four times vaccinated head of Pfizer again fell ill with Covid Burla tweeted about his illness. Let me remind you that this is the second Covid infection in 1.5 months at the head of Pfizer. (https://bit.ly/3fkNImb) I have tested positive for COVID. I'm feeling well & symptom free. I've not had the new bivalent booster yet, as I was following CDC guidelines to wait 3 months since my previous COVID case which was back in mid-August. While we've made great progress, the virus is still with us.