The vaccine also reduced by 66.5% the number of cases of postherpetic neuralgia and reduced the severity and duration of pain and discomfort associated with shingles, by 61.1%.
The processing of meat, by adding preservatives such as salt or sodium nitrite to prevent the growth of germs, or smoking the meat to preserve or enhance color and flavor, may add compounds that might increase the potential of these foods to cause cancer.oncern about the possible effects of food additives on health, including cancer, is one reason that many people are now interested in organic foods. Organic foods are often promoted as an alternative to foods grown with conventional methods that use chemical pesticides and herbicides, hormones, or antibiotics.
Nitrates and nitrites are frequently added to processed meats like bacon, ham, sausages and hot dogs. They function as preservatives, helping to prevent the growth of harmful bacteria. They also add a salty flavour and improve the appearance of the meat products by giving them a red or pink color.