Wikipedia has a great article entitled "trench warfare" that can answer your question. here is what is written at the top of that page: Trench warfare is a form of warfare where both combatants have fortified positions and fighting lines are static. Trench warfare arose when a revolution in fire power was not matched by similar advances in mobility, resulting in a slow and grueling form of defense-oriented warfare in which both sides constructed elaborate and heavily armed trench and dugout systems opposing each other along a front, with soldiers in both trench lines largely defiladed from the other's small arms fire and enclosed by barbed wire. The area between opposing trench lines (known as "no man's land") was fully exposed to small-arms and artillery fire from both sides. Attacks, even successful ones, often sustained severe casualties as a matter of course. Periods of trench warfare occurred during the American Civil War and the Russo-Japanese War and reached peak bloodshed on the Western Front of World War I
trench foot also trench mouth was a major killer
NO
lSoldiers lived in the same trench where they fought and people were dying. Living conditions were very hazardous and uncomfortable.Standing rain water in the trenches caused rats and diseasesTrench foot was a widely spread disease caused by wet, unsanitary conditions in which the feet would become infected. If untreated the feet would become gangrenous and have to be amputated.Those killed or wounded in the trenches would have to stay in the trench causing more disease, rats, etc.This method of warfare was very ineffective. Battle lines did not move, instead it caused a stalemate* the food that they ate was made from scrat, which was from mud and also rats.
There were many diseases including: trench foot, shell shock, gas blindness, and in the winter, frostbite. Also common were small pox, cholera, leprosy. One other terrible disease was trench foot. This happened when the foot is submerged in water for long periods of time. It was so common in World War 1 because of the mud and water in the trenches. The foot becomes itchy and swollen. and eventually toes can fall off, along with the foot.
Humans carry two types of lice. The lice normally found in the trenches would be taken there by soldiers with bad cleanliness habits and spread among the others in close proximity.
Body lice spread disease. Lice itch. In the trench, there's not much movement (no showers, etc.).
within or adjacent to trenches
The silk road didn't cause disease to occur but it did greatly contribute to its spread most famously with the black plague.
that is false
A contagion is either a disease spread by contact, the spread of such a disease, or the spread of anything harmful, as if it were a disease.
that is false
weil's disease, plague
answer is Down town abbey
An Epidemiologist studies the spread of disease.
Mainly because lice often carry diseases. During and right after World War I, a disease called typhus killed millions of people, and it was primarily spread by lice.
A disease which is carried and spread by an agent (animal or microorganism) is a vector spread disease. Eg. Mosquitoes are the vectors for malaria.
Lyme disease is spread by ticks. Lyme disease can be pretty much everywhere.