Be watchful for what could be subtle signs of this deadly fungal disease! www.blastomycosis.ca for further information and message board. This disease is commonly misdiagnosed or overlooked before it is too late so count on yourself to be vigilant. The fungus is common and exposure is probably inevitable -- especially if your dog is around any creek or riverbeds, mulch, or newly excavated dirt. Especially when it is hot and humid. Many exposed dogs (and people) do not get sick; often it affects those dogs who have weaker immune systems (hot spots, ear infections, skin allergies, conjunctivitis, etc).