WES 5 microorganisms and disease

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What is an infectious disease?

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An infectious disease is an illness caused by pathogens (like bacteria or viruses) that can spread from one person to another.

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How can infectious diseases spread?

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Infectious diseases can spread through direct contact, airborne transmission, contaminated surfaces, or bodily fluids.

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What is the role of bacteria in our lives?

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Most bacteria are helpful and play essential roles in processes like digestion and nutrient cycling.

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What are antibiotics?

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Antibiotics are medicines used to treat infections caused by bacteria.

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What happens when antibiotics are overused?

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Overusing antibiotics can lead to antibiotic resistance, making infections harder to treat.

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What is a pandemic?

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A pandemic is the worldwide spread of a disease affecting a large number of people.

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What is the difference between bacteria and viruses?

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Bacteria are single-celled organisms that can live independently, while viruses are smaller and need a host to reproduce.

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What is the importance of washing hands?

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Washing hands helps prevent the spread of infectious diseases by removing germs.

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What is vaccination?

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Vaccination is a method to protect against diseases by stimulating the immune system to recognize and fight pathogens.

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What does it mean to be immune to a disease?

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Being immune means that your body can effectively fight off a disease without getting sick.