immunisation

"He is an unusual individual."

"It is very important to give your daughter independence in her life so she learns from experience."

"I always try not to interfere with other people’s personal affairs."

"The influenza virus spread quickly through the school, causing many students to miss class. "

"My uncle is a computer for our family; he's always calculating budgets and costs. "

"With a simple remote, he could control the toy truck."

"The doctor is immunising children against measles with a vaccine. "

"supply and demand"

"Immunization against influenza is important for all child-care workers."

"The car needed traction on the icy road, so the driver put on snow chains. "

"The crossing guard was signalling cars to stop so the children could safely cross the street. "

"the performance of an undertaking or a duty"