of contraception such as a condom. HIV (Human Immunodeficiency Virus) initially causes a 'flu like illness'. Unless successfully treated with antiviral drugs the virus enters the lymph nodes and attacks the body’s immune cells. Late-stage HIV, or AIDS, occurs when the body’s immune system is no longer able to deal with other infections or cancers. HIV is spread by sexual contact or exchange of body fluids such as blood. 4.3.3.3 The human body defends Describe the body’s 0.5 Post-it on a body outline to itself against the entry of first-line defences. recap KS3. pathogens: Label a diagram to show how the skin is a barrier and the body defends itself against produces antimicrobial the entry of pathogens. secretions the nose catches particles
of contraception such as a condom. HIV (Human Immunodeficiency Virus) initially causes a 'flu like illness'. Unless successfully treated with antiviral drugs the virus enters the lymph nodes and attacks the body’s immune cells. Late-stage HIV, or AIDS, occurs when the body’s immune system is no longer able to deal with other infections or cancers. HIV is spread by sexual contact or exchange of body fluids such as blood. 4.3.3.3 The human body defends itself against the entry of pathogens: the skin is a barrier and produces antimicrobial secretions the nose catches particles Describe the body’s first-line defences. 0.5 Post-it on a body outline to recap KS3. Label a diagram to show how the body defends itself against the entry of pathogens.
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