Vocabulary

• fight off: To defend a position, often violently
• used to: Did regularly before, but don't do now
• live for: To consider something the most important thing in your life; to find purpose or great pleasure in something.
• know about: To have information or understanding of a subject or situation.
• not available: Not able to be used or obtained; inaccessible.
• immune: Having a special protection from, e.g. the law
• extremely: In a way that is much more than usual or expected
• basically: Used before you explain something simply, clearly
• severe: Very bad; harsh
• effective: Working efficiently to produce a desired result
• treat: To pay for the food or enjoyment of someone else
• develop: To explain something in steps and in detail
• environment: Natural world in which plants and animals live
• viral: Of or caused by a virus
• affect: To cause a change in something else
• effectively: In a way that produces the desired result
• pregnant: Carrying your unborn baby inside you
• similar: Nearly the same; alike
• brain: To strike someone forcefully on the head
• cause: Belief, goal or organization that people support
• refer: To talk about or write about something
• infection: (Computers) Having a computer virus
• internal: Being or happening in the body
• treatment: Medicine or method to make someone healthier
• expectancy: Excited feeling that something is will happen soon
• normal: Standard or regular way of doing something
• commonly: Typically, normally; not unusually
• rarely: Not often (seen, done, etc.); infrequently
• important: Having power or authority
• system: Set of organized, planned ideas that work together
• simple: Not hard to understand or do; not complex
• catch: Amount of something that has been caught
• fever: A high body temperature, indicating illness
• virus: File secretly put on computers to cause harm
• transmit: To broadcast by using signals to a radio/TV
• successful: Having the desired effect or result
• person: Man, woman or child
• attack: To try to destroy, beat, or injure
• cough: To suddenly expel air from the lungs
• sexual: Relating to men and women and their relationships
• area: Amount of measured space
• group: Two or more musicians who play music together
• human: A person; a man, woman or child
• flu: Illness causing headache, fever etc.
• importantly: In an important way;
• skin: To defeat someone easily and completely
• lymph: Clear fluid containing white blood cells
• enlarge: To make something larger (e.g. a photo)
• unwell: Being in poor health; having your period
• hiv: Infection by the human immunodeficiency virus