Human Communicable Diseases — AQA GCSE Combined Science: Synergy 8465
AQA GCSE Combined Science: Synergy · 8465
Human Communicable Diseases
What you need to know
Describe the symptoms, transmission, and preventative treatments for specific common human infections, including Salmonella and measles.
Explain the effects and spread of sexually transmitted infections, focusing on gonorrhea and HIV/AIDS.
Detail how Salmonella bacteria spread via unhygienic food preparation and cause illness through toxin secretion, and how this is controlled by poultry vaccination.
Describe measles as a viral disease spread by inhalation of droplets, emphasizing the critical importance of early childhood vaccination to prevent fatal complications.
Explain the bacterial cause of gonorrhea, its increasing resistance to penicillin, and control strategies using antibiotics and barrier contraception.
Describe the biological progression of HIV to late-stage AIDS, noting that the virus attacks immune cells unless controlled by antiretroviral drugs.
Evaluate broad scientific applications and public health strategies designed to reduce or entirely prevent the spread of these communicable diseases.