They can even be spread by breathing the air around someone who is sick. Some infectious diseases, such as measles, can be prevented by a vaccination, which is a shot that makes you immune to the pathogen. Proper hygiene, such as washing your hands regularly, can also help prevent infectious diseases.
It's sort of like a Furby that hatches from an egg, adorably poking through its glowing shell when you rub it. The normal price of Hatchimals is $50 to $60, but this season's must-have toy is sold out in virtually all stores and major retailer websites.
Step 1 â Set Up an Incubator. Depending on how many eggs they accommodate and how automated they are, Incubators run from around $50 for the homesteader favorite âHova-Batorâ into the thousands of dollars for commercial scale incubators. With top-of-the-line incubators, you put in an egg, close the door and out pops the chick three weeks later.