Multiple choice Which of the following groups of diseases are caused by bacteria? Pneumonia, tetanus and diabetes Pneumonia, tetanus and scurvy Typhoid, measles and cholera Typhoid, pneumonia and tuberculosis Reveal answer Fill a bubble to check yourself D Correct answer Explanation Typhoid is caused by Salmonella typhi, pneumonia by Streptococcus pneumoniae, and tuberculosis by Mycobacterium tuberculosis. All three are bacterial infections.