A mixture: 1  can be separated into 2 or more substances by physical or mechanical means. 2  displays the properties of the pure substances making it up. 3  its composition can be varied by changing the proportion of pure substances making it up.  heterogeneous substances, ones with non-uniform composition throughout the sample, are always mixtures.
Injection Site Symptoms. At least half of all people who receive pneumonia shots will experience mild side effects in the area of injection, such as pain or redness. Less commonly, swelling or hardness may also occur in the area. These symptoms can limit movement of the arm or leg where the shot was given.
Flu shots donât work! Again, this has to do with the many different strains of influenza virus that change constantly. Seasonal flu shots canât cover every flu variety. So yes, you can still get sick if you get a flu shot â but youâre considerably decreasing your odds of getting sick during flu season by getting one, typically by 50-60%. I feel sick after getting the flu shot. Importantly, getting a flu shot cannot cause flu illness. Flu shots consist of inactivated flu virus or, in recombinant vaccines with no virus at all. Some people do experience mild side effects after getting a flu shot including soreness where the shot was given, low grade fever, headaches and achiness. These side effects are minor and brief considering the severity of getting sick with the flu for someone with diabetes.