Sleep advice

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Hey ladies, need some advice over here. So my baby boy will be 7 months next week. He’s been truly amazing and would sleep 11 hours straight every night. Well last week he was hit hard with human Metapneumovirus. Needless to say it knocked him completely off his routine as he had a fever, couldn’t really breathe that well etc. He was waking up but I complete understood as he was sick and didn’t feel well. Now about 2 weeks later he’s completely fine and feels totally back to normal, however he’s now consistently still waking up once a night to eat. I’ve let him cry it out but he is hysterical and sucks a bottle down so quick when I finally give it to him. How do I get him back to sleeping through the night? I’m scared he’s now used to getting a bottle in the middle of the night and he’ll never go back to sleeping though!