it's hard to tell the exact number
By inward I suppose you mean it coughs from the throat. Many dogs can have a cough (kennel cough) if they are around other dogs that have it. It is very contagious. Take your dog to the veterinarian he can tell you what is wrong. Also, keep up with it's vaccinations yearly. There is a vaccine for kennel cough.
6???
You can have 4 at home or 6in the kennel
150
Kennel cough is perhaps the closest canine equivalent to the common cold. It's rarely life-threatening, but it sure can be uncomfortable for your dog. Fortunately, an annual vaccination can protect your dog from kennel cough. If you plan to board your dog, enter him into competition, or let him spend lots of time around other dogs, get him vaccinated. At many shows and kennels, in fact, it's required. Aside from the hacking cough, your dog will appear generally healthy, with a good appetite. He'll simply suffer through it.http://dogtime.com/kennel-cough.html
A populous kennel refers to a kennel that houses a large number of dogs. It is a place where multiple dogs are kept and cared for, often by professional breeders or dog trainers. Keeping a large population of dogs in a kennel requires responsible management to ensure their health and well-being.
how many dogs can I keep before I need a license
You can have up to three dogs in your kennel, on all Nintendogs games. If you are interested in getting more dogs, you can store your dog(s) in the dog hotel. Just don't leave them in there for too long!
Not the human flu, but dogs are susceptible to the canine version of colds and flu (which are caused by different things) The canine flu shows symptoms very close to kennel cough but they ARE NOT the same thing. The canine flu is almost the same as horse flu, and dog flu can be described as H3N8. many dogs recover within a few weeks on their own, beware that dogs may not show symptoms but are still contagious to other dogs. Humans and dogs can not transmit flu from each other, they are different strains.
None
4, without a kennel license
http://dogtime.com/kennel-cough.html Kennel cough is perhaps the closest canine equivalent to the common cold. It's rarely life-threatening, but it sure can be uncomfortable for your dog. Fortunately, an annual vaccination can protect your dog from kennel cough. If you plan to board your dog, enter him into competition, or let him spend lots of time around other dogs, get him vaccinated. At many shows and kennels, in fact, it's required. Symptoms: Aside from the hacking cough, your dog will appear generally healthy, with a good appetite. He'll simply suffer through it--but obviously if he could voice a preference, he'd choose to not be ill in the first place.