Communicable diseases are illnesses that can spread from person to... Show more
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Updated Mar 20, 2026
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Understanding Communicable Diseases for AQA Science
Hena
@hshakoor4
1 / 3
Viral Infections: HIV and Tobacco Mosaic Virus
HIV is a serious virus that initially causes flu-like symptoms but can develop into AIDS if left untreated. You can prevent HIV by using condoms during sexual contact and never sharing needles. The virus spreads through sexual contact and sharing contaminated needles, making safe practices absolutely essential.
Antiretroviral drugs can help manage HIV, but prevention remains the best strategy. These medications help people with HIV live healthier lives by controlling the virus in their body.
Tobacco mosaic virus affects plants, creating a distinctive mosaic pattern on leaves that reduces photosynthesis and slows plant growth. Farmers prevent this by using crop rotation, virus-free seeds, and controlling insects that spread the disease.
Key Insight: Both human and plant viruses can be prevented through smart practices - safe behaviour for humans, and proper farming techniques for plants.
Vector-Borne and Respiratory Diseases: Malaria and Measles
Malaria causes repeating episodes of fever, chills, headaches, and vomiting. Mosquitoes act as vectors, meaning they carry the disease from person to person. You can protect yourself with insect repellent, mosquito nets, and antimalarial drugs when travelling to affected areas.
Measles starts with cold-like symptoms but progresses to sore, red eyes, high temperature, and small greyish-white spots inside your cheeks. It spreads through respiratory droplets when infected people cough or sneeze.
Prevention is straightforward: get vaccinated, wash your hands regularly, and cover your nose and mouth when sneezing or coughing. Vaccination is particularly important as it provides long-lasting protection.
Remember: Mosquitoes don't just bite - they can carry serious diseases, so always use protection in areas where malaria is common.
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Rohan U
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I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
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Understanding Communicable Diseases for AQA Science
Hena
@hshakoor4
Communicable diseases are illnesses that can spread from person to person or through other means like insects, contaminated food, or infected plants. Understanding how these diseases spread and how to prevent them is crucial for protecting your health and the... Show more
Viral Infections: HIV and Tobacco Mosaic Virus
HIV is a serious virus that initially causes flu-like symptoms but can develop into AIDS if left untreated. You can prevent HIV by using condoms during sexual contact and never sharing needles. The virus spreads through sexual contact and sharing contaminated needles, making safe practices absolutely essential.
Antiretroviral drugs can help manage HIV, but prevention remains the best strategy. These medications help people with HIV live healthier lives by controlling the virus in their body.
Tobacco mosaic virus affects plants, creating a distinctive mosaic pattern on leaves that reduces photosynthesis and slows plant growth. Farmers prevent this by using crop rotation, virus-free seeds, and controlling insects that spread the disease.
Key Insight: Both human and plant viruses can be prevented through smart practices - safe behaviour for humans, and proper farming techniques for plants.
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
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Vector-Borne and Respiratory Diseases: Malaria and Measles
Malaria causes repeating episodes of fever, chills, headaches, and vomiting. Mosquitoes act as vectors, meaning they carry the disease from person to person. You can protect yourself with insect repellent, mosquito nets, and antimalarial drugs when travelling to affected areas.
Measles starts with cold-like symptoms but progresses to sore, red eyes, high temperature, and small greyish-white spots inside your cheeks. It spreads through respiratory droplets when infected people cough or sneeze.
Prevention is straightforward: get vaccinated, wash your hands regularly, and cover your nose and mouth when sneezing or coughing. Vaccination is particularly important as it provides long-lasting protection.
Remember: Mosquitoes don't just bite - they can carry serious diseases, so always use protection in areas where malaria is common.
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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
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iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
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very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
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I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
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Stefan S
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Thomas R
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Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
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Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user