Health Ferrets can catch and give the common human cold. Plenty of rest and water is the cure, but sometimes a trip to the vet is needed to prevent the cold from becoming something else. Also keep ferrets out of extreme heat. Over 85 degrees and the ferret should be in shade with plenty of ventilation and water. If a ferret becomes dehydrated, mix Karo syrup, honey or Linatone with water and get that animal to drink and then to a vet.
Ferrets can get heartworms from mosquitoes.
Please house them indoors for fewer problems and healthier pets. Ferrets are fun to watch. They like to play until they drop. Ferrets in pairs are as easy to take care of as one, but more fun to watch than a barrel of monkeys. They live between six and nine years and are lively the whole time.