Making the world better, one answer at a time. Rich soil is made up of sand, silt, clay and organic matter (compost) in various stages of decomposition. Humus is the stable remains of decayed organic matter, carbon remains of unknown sorts that attach themselves to clay to improve soil structure. Humus has the ability to increase the soil's water retention, buffer PH , and helps the plant use nutrients although humus is not fertilizer but humic acids and humins.
Salmonellosis, or salmonella, is another bacterial illness that both domestic and wild rats carry. Like leptospirosis, it is spread to humans through contact with urine and feces. In humans, salmonellosis causes gastrointestinal problems such as diarrhea, stomach cramps and fever.
Hantavirus disease is caused by several different strains of Hantaviruses. Hantaviruses are found in wild rodents in different parts of the world. Hantaviruses found in North America cause Hantavirus Pulmonary Syndrome which can cause severe lung problems.antavirus can be spread from wild rodents, particularly mice and rats, to people. The virus, which is found in rodent urine, saliva, and feces, can be easily aerosolized in confined spaces when disturbed by rodents or human activities, such as sweeping or vacuuming.