To prevent measles, children (and some adults) should be vaccinated with the measles, mumps, and rubella (MMR) vaccine. Two doses of this vaccine are needed for complete protection.Children should be given the first dose of MMR vaccine at 12 to 15 months of age.The second dose can be given 4 weeks later, but is usually given before the start of kindergarten at 4 to 6 years of age.o prevent measles, children (and some adults) should be vaccinated with the measles, mumps, and rubella (MMR) vaccine. Two doses of this vaccine are needed for complete protection.
GPS (Global Positioning System) Satellites orbit the earth and transmit signals. GPS receivers take the signal information and use it to calculate the userâs exact geographic location. Most mobile phones and smartphones have GPS receivers. Camcorders and digital cameras also use them for GPS tagging.resent to your audience. 1  Invited audience members will follow you as you navigate and present. 2  People invited to a presentation do not need a Prezi account. 3  This link expires 10 minutes after you close the presentation.
Global Positioning System tracking is a method of working out exactly where something is. A GPS tracking system, for example, may be placed in a vehicle, on a cell phone, or on special GPS devices, which can either be a fixed or portable unit. GPS works by providing information on exact location. It can also track the movement of a vehicle or person.