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Because people (including doctors) keep using antibiotics for inappropriate purposes, including treatment of the common cold, which is a virus. Viruses are not affected by antibiotics.
Constant exposure to antibiotics in the environment has resulted in mutations of bacteria so that they are antibiotic resistant. Thus, it is necessary to continue to develop new antibiotics to deal with these new super-bacteria.
It should be said that the drug companies themselves are largely responsible for this, as they constantly lobby to allow antibiotics to be used unnecessarily, such as in treatment of poultry and other animals that are to be slaughtered for meat. This saves money, but it also releases huge amounts of drugs into the environment. (See above for results) The pharmaceutical giants thus get richer in two ways: selling the old drugs and developing and marketing new ones.
What else can I help you with?
What are the effects of antibiotics on disease-causing bacteria?
Certain types of antibiotics will kill certain types of bacteria.
Types of scientists involved in using antibiotics?
Microbiologists study bacteria and resistance mechanisms, pharmacologists develop new antibiotics and study drug interactions, epidemiologists track antibiotic usage and resistance rates, and clinicians prescribe antibiotics and monitor patients for treatment effectiveness.
What are the cells that have ability to divide and develop into many types of cells?
A stem cell can develop into other types of cells.
What kind of drug kills bacteria?
The types of drugs that can kill bacteria are called 'antibiotics'.
What types scientist studies how bacteria are affected by antibiotics?
Usually Microbiologists, but also Immunologists and Bacteriologists. Hope this helps! If you specifically are looking at antibiotics and the mechanisms involved, then maybe a Pharmacologist could apply here as well.
What are the effects of antibiotics on disease-causing bacteria?
Certain types of antibiotics will kill certain types of bacteria.
Types of scientists involved in using antibiotics?
Microbiologists study bacteria and resistance mechanisms, pharmacologists develop new antibiotics and study drug interactions, epidemiologists track antibiotic usage and resistance rates, and clinicians prescribe antibiotics and monitor patients for treatment effectiveness.
When are antibiotics usually given?
Antibiotics are usually given to someone who is sick with an infection. There are many types of antibiotics.
What can antibiotics also cure?
Antibiotics can cure all types of bacterial infections.
What are antibiotics and how are they used?
different antibiotics are used for fighting different types of bacteria.
What types of illnesses do antibiotics cure?
Antibiotics only cure bacterial infections. Antibiotics will not cure a viral infection.
Are there antibiotics for bird flu?
There are no antibiotics for the bird flu. Influenza (all types) is caused by a virus, and hence can't be treated with antibiotics (antibiotics only work with bacteria).
What is the sickness that is not killed by antibiotics?
Viruses are not killed by antibiotics; there are also other types of sickness, such as cancer, which cannot be killed by antibiotics. Antibiotics are only useful for treating bacterial infections.
What are the main types of antibiotics?
coca cola and mirinda.
What types of bacteria infections these drugs are used for?
Antibiotics.
What is a good reason to doubt the new antibiotics will cure all human disease?
Some antibiotics, such as penicillin, affect only certain types of bacteria but not other types.
What are the different types of relationships studied in psychology?
In psychology, different types of relationships studied include romantic relationships, friendships, family relationships, and professional relationships. Researchers examine how these relationships form, develop, and impact individuals' emotions, behaviors, and well-being.
