Reduced levels of vitamin D in people with lupus may be due to one or both of two possible scenarios: 1  The deficiency is related to the disease itself; or. 2  The deficiency is caused/exacerbated by avoiding sun exposure due to increased photosensitivity of individuals with lupus.
They are becoming less effective because the bacteria is becoming immune to the antibiotics. It is import to finishing taking all of you antibiotics because the bacteria that are exposed to the antibiotics that do not die can build a resistance towards that certain drug.ach antibiotic is designed to kill a certain type/types of bacteria. Antibiotics are becoming less effective because sometimes the bacteria are not killed.
Quick Answer. Antibiotics are advantageous because they combat infections preserve lives and do not harm normal body cells, but they are disadvantageous because they have side effects and can kill healthy bacteria. About.com also notes that harmful microorganisms, such as Staphylococcus aureus, can develop a resistance to antibiotics.