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Perform the indicated matrix operations.
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Cholera
An infectious disease caused by the bacterium Vibrio cholerae, leading to severe diarrhea and dehydration.
Polio
A viral disease that can affect nerves and lead to partial or full paralysis, largely eradicated in many countries through vaccination.
Diphtheria
A bacterial infection causing a thick covering in the back of the throat, which can lead to breathing difficulties, heart failure, paralysis, or death.
Malaria
A serious and sometimes fatal disease caused by a parasite transmitted to humans through the bite of an infected mosquito.
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