Disease resistance refers to an organism's ability to defend itself against pathogens like viruses, bacteria, and fungi that cause infections and illnesses.
Q: How does disease resistance work?
A: Organisms possess innate immune systems that recognize and destroy invading pathogens. These include physical barriers like skin and mucous membranes, and specialized cells and proteins that attack and neutralize threats.
Q: What factors contribute to stronger disease resistance?
A: Genetics and evolution play significant roles. Organisms with genetic variations enhancing immune defenses are more likely to survive and reproduce, passing these advantageous traits to future generations through natural selection.
Q: Are there different types of disease resistance?
A: Yes, there are two main categories:
Q: Why is disease resistance important?
A: Disease resistance protects against potentially deadly infections and supports population health. It's also crucial in agriculture, protecting crops from pests and pathogens that could threaten food supplies.
Q: Can disease resistance be weakened or overcome?
A: Yes. Factors include:
Researchers continually work to improve disease resistance through vaccines, therapies, and breeding programs.
Q: How can I support my own disease resistance?
A: While genetics play a role, you can take these steps:
By caring for your body, you strengthen its defenses against pathogens.