14275160
Description
Flashcards by Aaishah Din, updated more than 1 year ago
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Created by Aaishah Din
almost 6 years ago
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| Question | Answer |
| MEASLES | Symptoms: fever, red skin rash can cause: blindness and brain damage treatment: none, isolation control: vaccination spread: droplet infection |
| HIV | symptoms: flu like illness can lead to : AIDS treatment: antiretroviral drugs prevention: vaccination, barrier method of contraception spread: sexual contact + the exchange of bodily fluids |
| what happens if HIV is not controlled using antiretroviral drugs? | - the virus enters the lymph nodes - attacks the immune cells → AIDS occurs when the immune system is so damaged it can no longer deal with other infections or cancers |
| TMV | symptoms: discoloured leaves, stunted growth can lead to: stunted growth→reduction in photosynthesis, effects the yield spread: wounds in the skin/epidermis control: controlling pests/vectors, removal of infected materials, sterilising tools, washing hands |
| why are VIRAL diseases so much harder to CONTROL and TREAT than BACTERIAL diseases? | this is because bacteria reproduce by binary fission, may produce toxins, or directly damage cells, while viruses reproduce and live within the cells, taking them over, damaging and destroying them. |
| bacterial diseases ~ salmonella food poisoning ~ | symptoms: fever, abdominal cramps, vomiting, diarrhoea - caused by the buildup of bacterial toxic waste products spread: ingesting food that is contaminated with bacteria control: vaccinate poultry, prepare food in hygienic conditions, washing hands |
| gonorrhoea | symptoms: thick yellow/green discharge from vagina or penis, pain when weeing spread: sexual contact control: treatment with antibiotics, barrier method of contraception |
| stages of infection | - entry of pathogen - reproduction in idea condition - increase nos. - production of harmful toxins, - symptoms develop |
| what is the incubation period | when bacteria rapidly reproduces in ideal conditions to increase numbers. |
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