one or more of these may be a sign of a fungal infection

Occasionally a dog may lose their appetite, but if it continues more than a day or two it can be a sign of something more serious.

Keep an eye on your pet's energy level and activity.  If you notice a distinct slow down, it may be cause for concern.

Weeping sores or skin lesions can be an indication of infection.  It is believed that blasto can enter the system through a puncture wound as well as being inhaled.  Keep a close eye on your pet's skin and paws.

Fever is always a sign of fighting infection.  Persistent, high fever is a warning sign for many types of infections, blasto included.

A wet dog nose is usually a happy dog nose.  But when their nose is actively running and you see discharge, that can indicate a respiratory bug or potentially blastomycosis.

A cough is a danger signal that all is not well with your pet's breathing.  It may be a cold, or "kennel cough", or it could be a sign of something more serious like  a fungal infection.  Don't assume it will go away on its own.  Consult your veterinarian.

If your dog starts to exhibit signs of limping or lameness, even with no outward sign of injury, that could be a sign of a fungal infection or other internal injury.