Primary, secondary, and tertiary sources. When searching for information on a topic, it is important to understand the value of primary, secondary, and tertiary sources.Primary sources allow researchers to get as close as possible to original ideas, events, and empirical research as possible.ertiary resources often provide data in a convenient form or provide information with context by which to interpret it. The distinctions between primary, secondary, and tertiary sources can be ambiguous.
As you might think, bacterial infections are caused by bacteria, and viral infections are caused by viruses. Perhaps the most important distinction between bacteria and viruses is that antibiotic drugs usually kill bacteria, but they aren't effective against viruses.
An antibiotic is given for the treatment of an infection caused by bacteria. Antibiotics target microorganisms such as bacteria, fungi and parasites. However, they are not effective against viruses. If you have an infection it is important to know whether it is caused by bacteria or a virus.Most upper respiratory tract infections, such as the common cold and sore throats are generally caused by viruses-antibiotics do not work against these viruses.lthough there are a number of different types of antibiotic they all work in one of two ways: 1  A bactericidal antibiotic kills the bacteria. 2  Penicillin is a bactericidal. 3  A bactericidal usually either interferes with the formation of the bacterium's cell wall or its cell contents.