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Force And Laws Of Motion
What are the different means by which infectious diseases are spread?
Infectious disease can be spread in the following ways :
(i) By Air - Sneezing or cough little droplets thrown in the air carry micrrobes which can cause the spread. For example in common cold, pneumonia etc.
(ii) Water - Contaminated water carry disease causing microbes which can cause infection o. Example, gut diseases such as cholera.
(iii) Sexual Contact. Diseases such as syphilis or AIDS are transmitted by sexual contact.
(iv) By vectors These are intermediaries which carry the infectious agents from the patient to the host (normal person). Example, mosquitoes (Female Anopheles mosquito) can cause spread of malaria.
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How many times did you fall ill in the last one year? What were the illnesses?
(a) Think of one change you could make in your habits in order to avoid any of/most of the above illnesses.
(b) Think of one change you would wish for in your surroundings in order to avoid any of/most of the above
illnesses.
A doctor/nurse/health-worker is exposed to more sick people than others in the community. Find out how she/he avoids getting sick herself.
Conduct A survey in your neighbourhood to find out what the three most common diseases are. Suggest three steps that could be taken by your local authorities to bring down the incidence of these diseases.
A baby is not able to tell her/his caretakers that she/he is sick. What would help us to find out
(a) that the baby is sick?
(b) what is the sickness?
Under which of the following conditions is a person most likely to fall sick ?
(a) When she is recovering from malaria.
(b) When she has recovered from malaria and is taking care of someone suffering from chicken-pox.
(c) When she is on a four-day fast after recovering from malaria and is taking care of someone suffering from chicken-pox.
Why ?
Under which of the following conditions are you most likely to fall sick ?
(a) When you are taking examinations ?
(b) When you have travelled by bus and train for two days.
(c) When your friend is suffering from measles.
Why?
Why food is necessary?
What do you mean by health?
‘Public cleanliness is important for individual health’ comment.
Why good economic conditions and gibes are needed for individual health?
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