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Hi, Welcome to JustAnswer. You're through to Dr Chris, a small animal Vet based in the UK. I am reviewing your question and will get back to you shortly.
Sorry to hear of this with Tyson. The symptoms you describe does sound consistent with kennel cough - an infectious upper respiratory tract infection, especially given the possible transmission from your older dog. Kennel cough is often vital in nature and self resolving in healthy dogs, however in the very young, very old or otherwise unwell it can proceed to a bacterial chest infection. Due to Tysons age I would advise taking him to your vet, as antibiotics may be required to prevent his condition worsening. He should also be kept away from other dogs until symptoms have fully resolved.
I hope that answers your question? Please let me know if you need any further help or advice. Best wishes for Tysons recovery.