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.
Although antibiotics are useful in a wide variety of infections, it's important to understand that antibiotics only treat bacterial infections. Antibiotics are useless against viral infections such as the common cold, or fungal infections such as ringworm.hey work by killing bacteria or preventing bacteria from multiplying and spreading. Antibiotics can be used to treat potentially life-threatening conditions such as pneumonia or other conditions such as acne.