Milton correctly diluted which will kill the 'flu virus. A full list of safe disinfectants can be obtained from the Feline Advisory Bureau . Many human medications, such as aspirin, are very dangerous to cats. Anti-freeze is also poisonous and apparently very attractive to cats and must be carefully guarded from your pet. Please check labels carefully.
Kittens are curious by nature.
Cookers, dishwashers, washing machines and tumble dryers are hazards and must be kept closed. Open toilets and full baths are temptations and can be lethal. If the kitten is not neutered, he will spray his territory and leave a most unpleasant smell behind him. This is why Stud cats have their own quarters away from the house. Also, entire males often wander miles from home searching for females and get into fights with other males which often result in large 'vets bills.