Guy is sick or I'm ghosted?

Hi, I matched with this guy on a dating app - OkCupid. After several days of texting we seemed to vibe with each other well. He asked me out on Tuesday and we planned to go to a place on his bucket list on Saturday. Throughout the week we were still texting (we kind of made it clear that neither of us were talking with anyone else) and both of us were very excited for our date. For context, this would be my first date with someone from dating apps so I was quite nervous. He knew about it, but assured me that everything would be fine and he couldn't wait to meet me irl. On Saturday morning he said good morning to me as usual, we texted for a little and he said he had a fever. I didn't hear from him for the rest of the day and Sunday. I texted him to ask if he was ok but he didn't reply so I told him to rest and get well soon. On Monday morning he texted saying he got covid and was very sick (high fever, chills and throwing up). We texted a bit throughout the day whenever he felt better. I told him to take care. Last I heard from him was Monday night and it's been 5 days. I texted him on Tuesday, Wednesday and Thursday asking if he was ok but he didn't read my messages. I wanted to call but we haven't called each other before and I was afraid that I might bother him. I stopped texting from Thursday. My friends said it seems like he's ghosting me, but he didn't strike me as a ghost in our conversations, if anything he really cared and always responded to my texts although he said that usually he was not a texter (the week that we started talking and he was not sick). He even said something along the line that it was not nice to ghost people etc. I noticed that he was online briefly throughout the week on Instagram. I'm not sure what to take of this since I don't have experience with online dating. Should I confront him or wait since I know some people might have it very rough with covid or move on completely?

Guy is sick or I'm ghosted?
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