epicnm
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Is droplet infection direct or indirect transmission? One textbook says it is direct and another textbook says it is indirect. The OCR A level spec doesn’t specify which one it comes under. Thanks
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ccath04
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We were taught it was Direct because transmission is caused by a direct spray of droplets over a short distance 🤷*♀️
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HarisMalik98
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Yeah, definitely direct
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macpatgh-Sheldon
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(Original post by epicnm)
Is droplet infection direct or indirect transmission? One textbook says it is direct and another textbook says it is indirect. The OCR A level spec doesn’t specify which one it comes under. Thanks
Hi the answers given by both ccath04 and HarisMalik98 are correct. The important point is that THERE IS NO INTERMEDIATE HOST in droplet infection, as there is in malaria, where the Plasmodium [malaria parasite]resides within a mosquito when it bites an infected person, and then the mosquito passes it on to another person. So malaria is transmitted indirectly through a mosquito, NOT directly from one human being to another.

Another example of an indirectly communicable disease is leptospirosis, in which the intermediate host is a rat, which transmits the organism to a human by biting.

Hope this helps you to grasp the point.
Be safe!
M.
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epicnm
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(Original post by ccath04)
We were taught it was Direct because transmission is caused by a direct spray of droplets over a short distance 🤷*♀️
(Original post by HarisMalik98)
Yeah, definitely direct
(Original post by macpatgh-Sheldon)
Hi the answers given by both ccath04 and HarisMalik98 are correct. The important point is that THERE IS NO INTERMEDIATE HOST in droplet infection, as there is in malaria, where the Plasmodium [malaria parasite] resides within a mosquito when it bites an infected person, and then the mosquito passes it on to another person. So malaria is transmitted indirectly through a mosquito, NOT directly from one human being to another.

Another example of an indirectly communicable disease is leptospirosis, in which the intermediate host is a rat, which transmits the organism to a human by biting.

Hope this helps you to grasp the point.
Be safe!
M.
Thank you so much for your help! That makes a lot more sense! Thank you!
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