The Right Temperature and Time. According to the United States Department of Agriculture (USDA), the average boneless chicken breast half (about 4 oz.) should be roasted at 350Â°F for 25 to 30 minutes.
Infection is the invasion of an organism's body tissues by disease-causing agents, their multiplication, and the reaction of host tissues to these organisms and the toxins they produce.Infectious disease, also known as transmissible disease or communicable disease, is illness resulting from an infection.he symptoms of an infection depend on the type of disease. Some signs of infection affect the whole body generally, such as fatigue, loss of appetite, weight loss, fevers, night sweats, chills, aches and pains. Others are specific to individual body parts, such as skin rashes, coughing, or a runny nose.
Microbes and disease. A few harmful microbes, for example less than 1 % of bacteria, can invade our body (the host) and make us ill. Microbes cause infectious diseases such as flu and measles.There is also strong evidence that microbes may contribute to many nonâinfectious chronic diseases such as some forms of cancer and coronary heart disease. Different diseases are caused by different types of micro-organisms.icrobes cause infectious diseases such as flu and measles. There is also strong evidence that microbes may contribute to many nonâinfectious chronic diseases such as some forms of cancer and coronary heart disease. Different diseases are caused by different types of micro-organisms.