Placental stage of labor
The part of labor that lasts from the birth of the baby until the placenta and fetal membranes are delivered. Also known as third stage of labor.
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- Plague
The plague is an infectious disease due to a bacteria called Yersinia pestis. Y. pestis mainly infects rats and other rodents. Rodents are the prime reservoir for the bacteria. Fleas function as the prime vectors carrying the bacteria from one species to another. The fleas bite the rodents infected with Y. pestis and then they […]
- Plague bacterium genome
All of the DNA (the genome) of the bacterium Yersinia pestis that causes the plague, consisting of four rings of DNA — a large circular chromosome made up of 4,653,728 bases of DNA and three much smaller rings, or plasmids — and including about 150 genes made inactive by mutation, a process that affects genes […]
- Plague genome
All of the DNA (the genome) of the bacterium Yersinia pestis that causes the plague, consisting of four rings of DNA — a large circular chromosome made up of 4,653,728 bases of DNA and three much smaller rings, or plasmids — and including about 150 genes made inactive by mutation, a process that affects genes […]
- Plague, black
In the 14th century the victims of the “black plague” had bleeding below the skin (subcutaneous hemorrhage) which made darkened (“blackened”) their bodies.
- Plague, bubonic
An infectious disease that is caused by the bacterium Yersinia pestis and is transmitted to humans from infected rats by the oriental rat flea. It is named for the characteristic feature of buboes (painfully enlarged lymph nodes) in the groin, armpits, neck, and elsewhere. Other symptoms of bubonic plague include headache, fever, chills, and weakness. […]