Vaccination

noun an infectious disease caused by the bacterium Corynebacterium diphtheriae, typically affecting the throat and sometimes other parts of the body

• Diphtheria is a serious bacterial infection that affects the mucous membranes of the throat and nose.
• I heard that diphtheria is making a comeback in some areas due to low vaccination rates.
• My grandma always tells me stories about the 'olden days' when people had to worry about diseases like diphtheria.
• The spread of misinformation on social media is like a modern-day diphtheria, infecting minds with dangerous ideas.

noun a type of virus that causes gastroenteritis in infants and young children

• Rotavirus is a common cause of severe diarrhea in young children.
• My baby had rotavirus last month and it was not fun at all.
• Ugh, rotavirus is going around the daycare again.
• The spread of negativity in the office was like a rotavirus infecting everyone's mood.