The False God of Central Planning: The Mysterious Reappearance of the Flu, Natural vs Vaccine-Induced Immunity, the Inability of the Vaccines to Control the Virus, and Other Extraordinary Lessons About the End of the Pandemic (𝗜𝗻𝘃𝗲𝘀𝘁𝗶𝗴𝗮𝘁𝗶𝘃𝗲 𝗥𝗲𝗽𝗼𝗿𝘁)

one type of interferon called IFN-I is actually suppressed or delayed by the SARS-CoV-2 virus (the opposite of what should happen), which is the reason why some people end up with severe Covid. In other words, the virus is actively fighting back against this portion of the innate immune system. 

https://www.juliusruechel.com/2022/01/the-false-god-of-central-planning.html