1 There are large areas of tundra in northern North America, northern Europe, and northern Asia. 2  The word tundra comes from a Finnish word tunturi, which means treeless plain or barren land. 3  The tundra is a very fragile biome that is shrinking as the permafrost melts. There are large areas of tundra in northern North America, northern Europe, and northern Asia. 2  The word tundra comes from a Finnish word tunturi, which means treeless plain or barren land. 3  The tundra is a very fragile biome that is shrinking as the permafrost melts.
Although the CDC states that pregnant women are 20 times more likely to become infected than non-pregnant healthy adults, the number of cases of listeriosis in pregnant women is about 17% . Symptoms of listeriosis may show up 2-30 days after exposure. Symptoms in pregnant women include mild flu-like symptoms, headaches, muscle aches, fever, nausea, and vomiting. If the infection spreads to the nervous system it can cause stiff neck, disorientation, or convulsions.
Most women don't feel very different at 3 weeks, but some may notice a tiny bit of  implantation spotting  or feel early pregnancy symptoms such as fatigue, tender breasts, nausea, a heightened sense of smell, food aversions, and more frequent urination.That's counting eight weeks from the first day of their last menstrual period.) The results: 1  50 percent had some symptoms of pregnancy by the time they were 5 weeks pregnant. 2  70 percent had symptoms by 6 weeks.