Speaking from less than pleasant experience, the pneumonia that basically defined Covid could be unpleasant for one who survived. I was in the hospital for 13 days, and it took another month or so after release for me to recover my stamina to the point it was pre-Covid. So, a month or two of the effects of the pneumonia I could believe. But 2 1/2 years? I won't say it's impossible, but it would be a black swan riding a rainbow-pooping unicorn kind of thing.
Taking TEB's post date and 2 1/2 years to figure out when the late Mrs. TEB had Covid, that would place it in May 2020. What had do-nothing done about Covid by then?
* Operation Warp Speed had accelerated the testing of AstraZeneca's vaccine and had a conditional contract to buy 300M doses. AZ started their Phase 2/3 clinical trial in May 2020.
* Inovio started the Phase 1 clinical trial of their vaccine in April 2020.
* Johnson & Johnson began a partnership in April 2020 with the US NIH to develop and test a Covid vaccine.
* Moderna began a partnership on January 7, 2020 with the US NIH to develop and test a Covid vaccine. Moderna's prototype vaccine was created on January 13th, because Moderna needed and had received the sequence of the SARS-CoV-2 virus. By the end of May volunteers for the Phase 2 clinical trial had begun
* Novavax began the Phase 1/2 clinical trial of its vaccine in late May 2020.
* Pfizer began working with the US government "late", being given Fast Track status on July 13, 2020. On July 22, a conditional contract with the US for 300M doses was announced.
* On July 31, 2020 Sanofi and GlaxoSmithKline announced a conditional contract with the US for 100M doses.
* On June 26, 2020 it was announced that Vaxart would participate in Operation Warp Speed.
AZ's, Inovio's, Sanofi/GSK's, and Vaxart's vaccines were not authorized for use, but that was not foreseeable in early 2020. Trump didn't put US' vaccine eggs in just one basket or even a single vaccine technology.* DARPA partner AbCellera began developing a monoclonal antibody treatment (mab) for Covid on January 28, 2020. This mab was authorized for use late in 2020. Mrs. SVPete received this mab when she had Covid.
* On February 4, 2020, Regeneron began working with HHS to develop a mab treatment for Covid. Trump received this treatment in October 2020, and EUA was received late in 2020.
* On February 25, 2020 an NIH clinical trial of Remdesivir was begun at University of Nebraska Medical Center. Remdesivir received Emergency Use Authorization in May 2020 and received FDA approval several months later in 2020. Trump received this treatment in October 2020. I received Remdesivir when I had Covid.
I could go int Trump's many many actions wrt ventilators and PPE in the first half of 2020, but this post is already tl;dr-grade. The terminally curious can learn more here,
https://www.gopbriefingroom.com/index.php/topic,395099.0.html (there may be some broken links).