Three situations are discussed at a health camp…
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Three situations are discussed at a health camp. In the first, two friends share one injection needle. In the second, a person receives a unit of blood that was not tested. In the third, an infected mother is expecting a baby. Use the NCERT list of eight infections.
- How many of the eight infections can pass on a shared injection needle?
- Name them.
- Do the same infections pass in the second and the third situation?
- How many of the eight infections are completely curable if detected early?
Need a reminder? The key ideaShow
NCERT lists eight sexually transmitted infections: gonorrhoea, syphilis, genital herpes, chlamydiasis, genital warts, trichomoniasis, hepatitis-B and HIV (AIDS). Except for hepatitis-B, genital herpes and HIV, the others are completely curable if detected early. Those three can also spread by needles, by blood and from mother to foetus. If one exposure has chance , then the chance of at least one infection in exposures is .
The worked solution
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Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Given. Three situations and the list of eight infections.
Plan. Use the three infections that spread in more ways than sexual contact.
Step 1. The shared needle. Hepatitis-B, genital herpes and HIV. That is .
Step 2. The other two situations. The same three infections can pass by infected blood in a transfusion and from an infected mother to her foetus.
Step 3. The curable group. infections are completely curable if they are detected early and treated properly.
Answer: ; hepatitis-B, genital herpes and HIV; yes; .
Check. The curable five are gonorrhoea, syphilis, chlamydiasis, trichomoniasis and genital warts.
Watch out. A shared needle does not spread the other five infections in the NCERT list. A person who has one of them should still see a doctor.
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