Parvo is a contagious virus that affects dogs. Just recently Ophra just lost one of her dogs to Parvo and the other was very ill. Vaccinations can control the spread of this disease. All dogs are at risk, however puppies are more at risk. This highly infectious disease spreads from dog to puppy or dog to dog by indirect or direct contact with their feces (watch what they sniff). The virus can survive in cold and hot temperatures for long periods of time. If not treated fast your puppy can die. For more information visit: http://www.squidoo.com/Is-Parvo-a-contagious-virus-for-dogs
How will I know what the signs are for an aggressive dog? Studies have show that these dogs will bare their teeth while their ears and tails are up. However if your dog is being aggressive out of fear they will show their teeth but will not raise their ears and tail. 
If your dog shows the signs of aggressive behavior then you will need to do a lot of obedience training to get it under control. If the aggression is out of fear, a lot of training is still needed. You need to find the root cause of what is making your dog afraid before it gets worst. It would be best to contact a dog trainer for help.
So you puppy gets in the trashcan at every chance he gets and you want him to stop. It could be asking for too much especially if there are scraps of food in the can. The easiest way is to keep the trashcan out of reach from your dog. If you don’t have an under the sink can or can place it on the counter, try getting a tall style trash can that comes with a tight lid. This will help detour your puppy from getting into trouble with the trash. However if it is a large and heavy puppy he could just as easily knock he can over.
Stopping your puppy from getting into the trashcan comes with training. Your puppy must learn the word ‘No’. And with that said you need to teach him to stay away from the trashcan. One method is to watch out of view with a squirt bottle and when your puppy goes and gets in the trash can squirt him and say ‘No’. But always remember to reward him when he listens. Also keep in mind that no matter what your dog’s age if there is something interesting in the can they will all be tempted to get in there.

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Many new puppy owners are in search of a speedy answer to how to train a puppy quickly. For such an urging necessity there are not too many answers, since by “quickly” we don’t mean hours or days but at least a couple of weeks. If you’re think how to train a dog quickly, then you probably also need to know that it is absolutely necessary to practice with the dog as much as possible for the skills to actually develop. Otherwise, training may prove very ineffectively. Those who want to find out how to train a dog quickly should turn to training schools.
Daily intensive practice is the first rule when you learn how to train a dog quickly and this will be intensive. For instance, you need to get the dog’s attention that is and establish eye contact with the pup. Use a dog treat out of the dog’s reach, reward the puppy only when it responds to his name and looks at you. You need to set the rules and make him play by them all the time, if you really want to learn how to train a dog quickly. You’ll have to spend constant time together applying the newly learned commands.
Don’t push the puppy to the point of fatigue, there’s no need to exhaust the puppy, as learning under such circumstances is ineffective. Keep in mind that it may even be detrimental to insist to train a dog quickly. Don’t forget that there are lots of guide books and videos on how to train a dog quickly, and they all mention the need to do everything in the most relaxed way possible, so that neither you nor the puppy feel pressure. It should take at least a week before a skill is mastered and only with continuous exercise it will become permanent.
For those who still want to learn how to train a train a puppy quickly the following information will be of great help. Click Here! This will help you to find out how to make your training easier and fast. Therefore, the question how to train a puppy quickly will no longer be an issue, once you learn the best way to trigger correct responses from your pup. You can choose to train your dog at home or in a school, but whichever, have fun!