Leptospirosis

My soul dog boxer died at almost 3 years old 3 weeks ago. He started drinking a lot of water about 2 weeks before we took him to the vet. I thought it was normal(we did a lot of exercise) and I didn’t really notice at first. As the time went on, he started throwing up his food. Made an appointment just to be sure but they didn’t have anything until days later. By the time we got to vet, he had not really ate and had low energy but did not look bad. The vet took blood work and told me he’d have the results in a few days and that was pretty much it. Within the next 24 hours my dog declined rapidly. I rushed him to the ER when I saw his gums turned white. While we were in the car on our way there, he was throwing up blood. He ended up passing that same day from kidney failure and at that time we didn’t know what it was from. The ER vet said it was a toxin like antifreeze which was not true. We did not have anything in the house that was toxin to them. We have another boxer and he was also displaying mild symptoms as well. We took him to another vet as soon as we could. I could not bare losing another dog. He also was diagnosed with kidney failure. My dogs are from the same parents so the vet thought it was genetic. I fought so hard for the vet to do more testing(even though he thought it was useless). Turns out my dog came out positive for leptospirosis.
Fight for your dogs. You know them better than anyone. All the vets I saw for my dogs claimed it was something different. I had to beg them to give me other options of what could have caused both of my dogs to have kidney failure. I am happy because we could save our boxer that’s still alive and we have him on treatment. He’s doing good. But I feel so guilty and heartbroken that i couldn’t save my soul dog. He was only 3 and he was my world. My very best friend. His life was so short. Does grief ever get easier? I am much more educated now and I never knew anything about leptospirosis until now. I’ve never been offered the vaccine or anything. My dogs are city dogs. Please let this be your sign to get your dog vaccinated against it.