Business risks are controlled using techniques of risk management. Pulmonary embolism may be preventable in those with risk factors. There is no known prevention for the condition other than the reduction of risk factors. Little is known about factors affecting cirrhosis risk and progression. This includes those who are young without risk factors. It is associated with an increase in the overall risk of death. Rough sex can be a factor associated with an increased risk of transmission. It was removed as a potential health risk. This is due to the increasing risk and rates of fraudulent transactions. Assessing those at high risk however is recommended. Newborn infants are at an increased risk of deficiency. Those at high risk may be vaccinated. It may also be useful in decreasing suicide attempts in adults at high risk. Affected tissues are at a great risk of infection. The third most common security risk is natural disasters.