The question about whether you can get pregnant on your period or not is probably the most common of the three situations noted above. The answer is yes and no. The probability is that you would not get pregnant having sex during your period.
Causes. The cause of measles is a virus that replicates in the nose and throat of an infected child or adult. When someone with measles coughs, sneezes or talks, infected droplets spray into the air, where other people can inhale them.auses. The cause of measles is a virus that replicates in the nose and throat of an infected child or adult. When someone with measles coughs, sneezes or talks, infected droplets spray into the air, where other people can inhale them.
Some animals and plants suffer from diseases which are also called Measles but which are caused by entirely different pathogens (such as parastical worms). The pathogen that causes Measles is the Measles virus, a type of  paramyxovirus.Here's a brief description of it:  http://en.wikipedia.org/wiki/Measles_virus.n most cases  where a pathogen is connected with a cancer, the pathogen may not  be causing the cancer, but may be diverting or inhibiting the  natural defenses of the body that are able to intercept and  neutralize damaged cells which could lead to cancer.