
What is an infection?
Which of the following is a pathogen?
Which microorganism causes COVID-19?
Which white blood cells produce antibodies?
What is the first line of defense against pathogens?
Which of the following is caused by bacteria?
Antibiotics are effective against:
Vaccines work by:
Which of these is NOT a common symptom of infection?
Which blood cells engulf and destroy pathogens?
What is inflammation?
Which disease is caused by a virus?
Which of the following helps prevent the spread of infection?
What do antibodies do?
Which organ is an important part of the immune system?
Which pathogen causes malaria?
What is immunity?
Which of the following is an example of a fungal infection?
Which blood component is responsible for clotting?
Which disease is transmitted by mosquitoes?











