Drivers, Relays, and Solid State Relays. Driver circuits. A typical digital logic output pin can only supply tens of MA of current. Even though they might require the same voltage levels, small external devices such as high-power LEDs, motors, speakers, light bulbs, buzzers, solenoids, and relays can require hundreds of MA. Larger devices might even need several amps.
Communicable Diseases Epidemiology Section Wisconsin Department of Health Services Division of Public Health P-42052 (Rev 08/2015) Page 1 of 2 Handwashing Disease Fact Sheet Why is handwashing important? Handwashing, when done correctly, is the single most effective way to prevent the spread of communicable diseases. Good handwashing technique is easy to learn and can significantly reduce the spread of infectious diseases among. children and adults.
Direct contact. The easiest way to catch most infectious diseases is by coming in contact with someone who has one. This someone can be a person, an animal or, for an unborn baby, its mother. Three different ways infectious disease can be spread through direct contact are: 1  Person to person.2  The most common way for infectious disease to spread is through the direct transfer of bacteria, viruses or other germs from one person to another.hree different ways infectious disease can be spread through direct contact are: 1  Person to person. 2  The most common way for infectious disease to spread is through the direct transfer of bacteria, viruses or other germs from one person to another.