Kavita,the science teacher,was teaching her students about the types of diseases based on duration: acute and chronic diseases. She also discussed their ability to spread in public and their immediate causes.
$(a)$ What are acute and chronic diseases? Give one example of each.
$(b)$ Name the type of diseases which spread by coming in contact with a sick person. Name the different types of organisms which cause diseases.
$(a)$ What are acute and chronic diseases? Give one example of each.
$(b)$ Name the type of diseases which spread by coming in contact with a sick person. Name the different types of organisms which cause diseases.
(N/A) Acute diseases are those that last for a very short period of time,e.g.,common cold or diarrhoea. Chronic diseases are those that last for a long time,even for a lifetime,e.g.,asthma or elephantiasis.
$(b)$ Diseases that spread by coming in contact with a sick person are called infectious or communicable diseases. These diseases are caused by various pathogens such as viruses,bacteria,fungi,protozoans,and worms.
$(b)$ Diseases that spread by coming in contact with a sick person are called infectious or communicable diseases. These diseases are caused by various pathogens such as viruses,bacteria,fungi,protozoans,and worms.
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