4 Logarithmic Functions Every function of the form f (x) = a x passes the Horizontal Line Test and therefore must have an inverse function. This inverse function is called the logarithmic function with base a. 5 Logarithmic Functions The equations y = log a x and x = a y are equivalent.
Measles, Mumps and Rubella (MMR) vaccine. Disadvantages to the MMR vaccine. A vaccine, like any medicine, is capable of causing serious problems, such as severe allergic reactions.The risk of MMR vaccine causing serious harm, or death, is extremely small.Mild problems include: Fever (up to 1 person out of 6) Mild rash (about 1 person out of 20) Swelling of glands in the cheeks or neck (rare) If these problems occur, it is usually within 7-12 days after the shot. Moderate problems include:he risk of MMR vaccine causing serious harm, or death, is extremely small. Mild problems include: Fever (up to 1 person out of 6) Mild rash (about 1 person out of 20) Swelling of glands in the cheeks or neck (rare) If these problems occur, it is usually within 7-12 days after the shot. Moderate problems include:
Two doses of measles-mumps-rubella (MMR) vaccine are highly effective in preventing mumps, but effectiveness decreases over time, according to the CDC. People in close contact settings are especially vulnerable, and there has been an increase in cases and outbreaks since 2006.