When Pasteurization was first invented many people could and would become ill to certain products due to tainting with certain bacteria and fungi. Additionally these various bacteria would cause the taste of these products to sour.
Originally Pasteur would come up with the method of heating up a certain food or substance, to kill these pathogens, when working to improve the longevity and taste of Wine. His method however is now used around the world for use in purifying Milk and Dairy, Wine, fruit juices, etc... and reducing the risk of food poisoning, while also improving the economics of these products.
The correct answer is A) microorganisms are transmitted from one organism to another.
The chain of infection is a process in which microorganisms are transmitted from one organism to another.
The chain of infection starts with the agent of infection that is the one which makes people sick. It exists in a reservoir, where the agent of infection lives. There is a portal of exit. It is the way the agent leaves the reservoir. Then we have the mode of transition. It could indirect or direct contact with the agent. The agent o infection enters a new body through what is known as a portal on entry. Finally, the host. It is the individual who receives this agent and gets sick.
37 to 42 weeks is the average length of a human pregnancy.
I know one is to get tested. Another could be to use protection that could prevent that kind of stuff. Then if you're already infected, you should tell your partner. And if you do sleep with your partner while infected, tell them to get tested.