Antibiotic resistance develops when people take antibiotics without need, stop doses early or use them in animals. Bacteria survive, become stronger and spread. These resistant bacteria don’t respond to common medicines anymore. Class 8 Science Curiosity Textbook Chapter 3 Health – ...
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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 – ...
Diseases like typhoid, cholera and hepatitis A spread through dirty water or food. Germs enter the body when we drink unclean water or eat infected food. Boiling water and hygiene prevent them. Class 8 Science Grade 8 Chapter 3 Health: The ...
Communicable diseases spread through air, water, food, insects or contact. We can prevent them by maintaining hygiene, washing hands, using clean water, getting vaccinated and covering our mouth while sneezing or coughing. class 8 science chapter 3 health the ultimate treasure ...
Some people fall sick more often because their immune system is weak. Poor diet, stress, lack of sleep or existing health conditions make them more likely to catch infections, even in the same surroundings. Class 8 Science Curiosity Chapter 3 Health: ...