cells, microscope, virus, bacteria, disease - illness, sickness, influenza - respiratory infection caused by viruses that infect the nose, throat, and lungs, common cold - an illness affecting your nose and throat., mucus, immune - your body is protected from getting sick from a virus or bacteria, paralyze - unable to move or feel a part of their body, often due to injury or illness, infect - to spread an illness to another person, suit - clothes for protection, scrape - damage of skin, fluid - liquid, swallowed - taken into the body,

Unit 'How do our bodies work?'

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