Aqa b1a 11.4_disease_pics_rg[1]
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Transcript of Aqa b1a 11.4_disease_pics_rg[1]
Diseases
How they affect us
Disease are acquired by:• Genetic causes – inherited from parents
• Microbial – infection from a virus, bacteria or fungus
• Parasitic - catch an organism that causes disease condition –
e.g. malaria – protozoa, thread worm crab lice
Disease pathogens - microbes
• Bacteria and viruses are the most common of disease pathogens
• Bacteria can survive outside of the host
organism• Viruses can only survive and reproduce within
a host cell
Bacteria
This is a pin prick with bacteria growing on it
These are rod shaped bacteria
Structure of bacteria
Bacteria produce toxins – poisons –that make us feel ill
Viruses – these are much smaller
Virus invade body cells and then hijack the cells DNA to reproduce – massive cell damge can be caused
• Chicken pox
Shingles
shingles
Rubella
or
German measles
Mumps
Athletes foot
Cold sore
Herpes
Small pox – a killer
Polio
Warts
Verruca
verruca
Ulcers
Ulcer
A few diseases – wikipedia linked
• Viral infectious diseases• AIDS – AIDS Related Complex – Chickenpox (Varicella) – Common cold –
Cytomegalovirus Infection – Colorado tick fever – Dengue fever – Ebola haemorrhagic fever – Epidemic parotitis – Hand, foot and mouth disease – Hepatitis – Herpes simplex – Herpes zoster – HPV – Influenza (Flu) – Lassa fever – Measles – Marburg haemorrhagic fever – Infectious mononucleosis – Mumps – Poliomyelitis – Progressive multifocal leukencephalopathy – Rabies – Rubella – SARS – Smallpox (Variola) – Viral encephalitis – Viral gastroenteritis – Viral meningitis – Viral pneumonia – West Nile disease – Yellow fever
• [edit]• Bacterial infectious diseases• Anthrax – Bacterial Meningitis – Brucellosis – Campylobacteriosis –
Cat Scratch Disease – Cholera – Diphtheria – Epidemic Typhus – Gonorrhea – Impetigo– Legionellosis – Leprosy (Hansen's Disease) – Leptospirosis – Listeriosis – Lyme Disease – Melioidosis – MRSA infection – Nocardiosis – Pertussis (Whooping Cough) – Plague – Pneumococcal pneumonia – Psittacosis – Q fever – Rocky Mountain Spotted Fever (RMSF) – Salmonellosis – Scarlet Fever – Shigellosis – Syphilis – Tetanus – Trachoma – Tuberculosis – Tularemia – Typhoid Fever – Typhus; Urinary Tract Infections