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Choice board
Antibiotics, Antivirals, and Vaccines
| question | answer |
|---|---|
| what is the main function of the immune system? | the immune system is designed to protect you against pathogens. |
| what are pathogens? | pathogens can be all kinds of things, including certain kinds of bacteria, viruses, infectious protists, certain types of fungi, and parasitic worms. |
| what is the first line of defense against pathogens? | the skin is the first line of defense against pathogens, and it is also home to helpful microbes that can keep bad microbe numbers down. |
| what is the second line of defense against pathogens? | the second line of defense includes non specific white blood cells such as macrophages, which engulf pathogens. |
| what is the third line of defense against pathogens? | the third line of defense is a specific defense that can target specific pathogens, and it involves immune cells such as T lymphocytes (T cells) and B lymphocytes (B cells.) |
| what do antibodies do? | antibodies are proteins made by some of your immune cells, such as B cells, that can be used to help pathogens. They often have a Y-like shape and can bind to a pathogen, making it unable to function correctly. |
| what is the purpose of vaccines? | vaccines are a way of exposing your body to an inactive form of a pathogen or a weakened form of a pathogen, which triggers an immune response and allows your body to retain "memory" against the pathogen. |
| what is herd immunity? | herd immunity is the protection offered by a community when a sufficient percentage of its population is immunized against a disease, making it difficult for the disease to spread. |
| what is the difference between antibiotics and antivirals? | antibiotics target bacteria, while antivirals are designed to target viruses. |
| why do scientists need to update flu shots every year? | scientists need to update flu shots every year because the influenza virus changes frequently, and a flu shot that works one year may not be effective against the influenza virus that is most common the next year. |