Give the name of pathogen, mode of transmission and preventive method for the following: a) Typhoid
Answers
Answer:
What is typhoid?
Typhoid is an infection caused by Salmonella typhimurium bacteria that is spread from human to human.
Typhoid is an infection caused by the bacterium Salmonella typhimurium (S. typhi).
The bacterium lives in the intestines and bloodstream of humans. It spreads between individuals by direct contact with the feces of an infected person.
No animals carry this disease, so transmission is always human to human.
If untreated, around 1 in 5 cases of typhoid can be fatal. With treatment, fewer than 4 in 100 cases are fatal.
S. typhi enters through the mouth and spends 1 to 3 weeks in the intestine. After this, it makes its way through the intestinal wall and into the bloodstream.
From the bloodstream, it spreads into other tissues and organs. The immune system of the host can do little to fight back because S. typhi can live within the host’s cells, safe from the immune systemTrusted Source.
Typhoid is diagnosed by detecting the presence of S. typhi via blood, stool, urine, or bone marrow sample.
Symptoms
Symptoms normally begin between 6 and 30 days after exposure to the bacteria.
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Answer:
Typhoid is caused byvsalmonella Typhi bacteria.
it is transmitted by faecal - oral route through ingestion of contaminated food or water.
