In simple linear regression a single independent variable is used to predict the value of a dependent variable. In multiple linear regression two or more independent variables are used to predict the value of a dependent variable. The difference between the two is the number of independent variables.
Watching for Systemic Symptoms. 1  1. Watch from swollen glands. Serious cases of cellulitis will spread beyond the initially infected region to become systemic and impact the rest of the body. 2  2. Notice if you experience fever and/or chills.
Cellulitis occurs when certain types of bacteria enter through a cut or crack in the skin. Cellulitis is commonly caused by staphylococcus and streptococcus bacteria. In 50 to 60 percent of cases, skin injuries such as cuts, insect bites, or surgical incisions are the cause of the infection.