Streetcars in North America Streetcars in North America Electric streetcars or trolley(car)s (North American English for the European word "tram") were once the chief mode of public transit in hundreds of North American cities and towns. Most of the original urban streetcar systems were either dismantled in the mid-20th century or converted to other modes of operation, such as light rail. Today, only Toronto still operates a streetcar network essentially unchanged in layout and mode of operation. Older surviving lines and systems in Boston, Cleveland, Mexico City, Newark, Philadelphia, Pittsburgh, and San Francisco were often infrastructure-heavy systems with tunnels, dedicated right-of-way, and long travel
HIV/AIDS in North America HIV/AIDS in North America As of 2016, it is estimated that there are 1.5 million adults and children living with HIV/AIDS in North America, excluding Central America and the Caribbean. 70,000 adults and children are newly infected every year, and the overall adult prevalence is 0.5%. 26,000 people in North America (again, excluding Central America and the Caribbean) die from AIDS every year. HIV/AIDS prevalence rates in North America vary from 0.23% in Mexico to 3.22% in The Bahamas. As of 2013, the adult prevalence rate is estimated to be 3.22%. As of 2013, the adult prevalence rate is estimated