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 ...
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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 ...
Communicable diseases are caused by pathogens like bacteria and viruses. They spread through air, water, food, insect bites or direct contact with infected people or surfaces. Hygiene and vaccination help prevent their spread. Class 8 Science Curiosity Chapter 3 Health: The ...
Diseases are caused by germs, poor diet, unhealthy lifestyle or lack of hygiene. They are of two main types: communicable (spread from person to person) and non-communicable (do not spread, like diabetes). Class 8 Science Curiosity Chapter 3 Health: The Ultimate ...