Antibiotic resistance spreads when people misuse antibiotics or give them to animals. Resistant bacteria spread through food, water or touch. Infected patients can carry these germs to hospitals, homes and communities. class 8 science chapter 3 health the ultimate treasure question ...
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NCERT Solutions and important questions for Class 8 science for CBSE 2020-2021.
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Bacteria become resistant when antibiotics are misused—like taking them without need or not finishing the full dose. Some bacteria survive, change and pass resistance to others, making future infections harder to treat. Class 8 Science Curiosity Textbook Chapter 3 Health – ...
Treating diseases depends on their type. Doctors may give antibiotics for bacterial infections, rest and fluids for viral infections or lifestyle changes for chronic diseases. Timely diagnosis and following medical advice are important. class 8 science chapter 3 health the ultimate ...
Edward Jenner discovered the smallpox vaccine in 1796. He used cowpox virus to protect people. His work saved millions and started the practice of vaccination to prevent deadly diseases worldwide. class 8 science chapter 3 health the ultimate treasure question answer Class ...
Some common communicable diseases are cold, flu, chickenpox, measles, tuberculosis, cholera, dengue and typhoid. These spread through air, water or contact and are caused by bacteria, viruses or parasites. Class 8 Science Grade 8 Chapter 3 Health: The Ultimate Treasure question ...