Search results
Results from the WOW.Com Content Network
Cows are natural reservoirs of African trypanosomiasis. In infectious disease ecology and epidemiology, a natural reservoir, also known as a disease reservoir or a reservoir of infection, is the population of organisms or the specific environment in which an infectious pathogen naturally lives and reproduces, or upon which the pathogen primarily depends for its survival.
An infection is the invasion of tissues by pathogens, their multiplication, and the reaction of host tissues to the infectious agent and the toxins they produce. [1] An infectious disease, also known as a transmissible disease or communicable disease, is an illness resulting from an infection.
Campylobacter has a large animal reservoir, with up to 100% of poultry, including chickens, turkeys, and waterfowl, having asymptomatic intestinal infections. The major reservoirs of C. fetus are cattle and sheep. More than 90% of campylobacter infections occur during the summer months due to undercooked meats from outdoor cooking. [3]
Animal populations are the principal reservoir of the pathogen and horizontal infection in humans is rare. A few examples in this category include lyssavirus infections, Lyme borreliosis, plague, tularemia, leptospirosis, ehrlichiosis, Nipah virus, West Nile virus (WNV) and hantavirus infections.
The CO92 strain was isolated from a patient who died from pneumonia and who contracted the infection from an infected cat. [15] In other regions of the world, the reservoir of the infection is not clearly identified, which complicates prevention and early-warning programs. One such example was seen in a 2003 outbreak in Algeria. [30]
B. pertussis is a highly contagious infection of the respiratory tract. [32] However, for B. pertussis to persist in a population the bacterium needs an uninterrupted chain of transmission as there are no animal reservoirs and the bacteria do not survive in the environment.
The natural reservoir of infection, a small rodent known locally as ratón maicero ("maize mouse"; Calomys musculinus), has chronic asymptomatic infection, and spreads the virus through its saliva and urine. Infection is produced through contact of skin or mucous membranes, or through inhalation of infected particles.
One important factor was the development of large reservoir of infection due to extensive schistosomiasis control programs that used intravenously administered tartar emetic since the 1960s. [52] Co-infection is known to cause earlier liver deterioration and more severe illness. [56]