Is their any options to choose from? O.o
Three hand signals you must know:
left turn hand signal - extending your left arm palm facing front
right turn hand signal - rest left elbow on the windowsill and raise forearm up. palms should be open
slow or stop signal - stick left arm out pointing down palm facing behind you
Answer:
Salmonella can be spread by food handlers who do not wash their hands and/or the surfaces and tools they use between food preparation steps, and when people eat raw or undercooked foods (:
Scientists are creating vaccinations that prevent people from getting bird flu. If the virus mutates, a new vaccine needs to be made. The vaccine needs to be tested, which can be dangerous. It also takes a long time for scientists to know whether the vaccine works.
