Final answer:
Continuing medical advances, improved living conditions, and better preventive treatment are the main reasons why communicable diseases kill fewer people today than in the past.
Step-by-step explanation:
The reason why communicable diseases, such as pneumonia, kill fewer people today than in the past is mainly due to continuing medical advances, improved living conditions, and better preventive treatment. These factors have contributed to reducing the transmission and severity of infectious diseases. For example, the development of antibiotics and vaccines has helped control the spread of infections, while improvements in sanitation and access to clean water have minimized the risk of contamination.
Continuing medical advances: The discovery and development of antibiotics and vaccines have been crucial in treating and preventing infectious diseases. Vaccines provide immunity against specific pathogens, reducing the likelihood of getting infected. Antibiotics target and kill bacteria, preventing the infection from spreading and becoming life-threatening.
Improved living conditions: Access to clean water, proper sanitation systems, and hygiene practices have significantly reduced the transmission of communicable diseases. Clean water helps prevent waterborne diseases, while proper sanitation minimizes the contamination of food and water sources. Hygiene practices like handwashing and food safety precautions further prevent the spread of infections.
Better preventive treatment: Early detection and prompt treatment of infections have improved with advancements in medical technology. Diagnostic tools and techniques allow for faster identification of pathogens, enabling healthcare providers to initiate appropriate treatment. Additionally, public health campaigns and education programs promote preventive measures, empowering individuals to take necessary precautions and seek timely medical assistance.