Shigella Dysenteriae Portal Of Entry

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Updated: April 24, 2022

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Springer.com

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FAQs

1

What is the portal of exit for Shigella?

Shigella, which is host-adapted to humans and nonhuman primates, is transmitted via the fecal–oral route, including through direct person-to-person or sexual contact or indirectly through contaminated food, water, or fomites.
2

How is Shigella dysenteriae transmitted?

How is Shigella spread? Shigella is found in the intestinal tract of infected people, and is spread by eating or drinking food or water contaminated with the bacteria. It can also be spread by direct contact with feces (even with microscopic amounts) from an infected person.
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How does Shigella enter the cell?

During intracellular replication, Shigella moves by polymerizing actin at one bacterial pole, forming actin comet tails, allowing the formation of bacteria-containing protrusions at the cell plasma membrane that invade adjacent cells.
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How does Shigella get into food?

People could get sick by: Getting Shigella germs on their hands and then touching their food or mouth. This may happen after: Touching surfaces contaminated with germs from stool from a sick person, such as toys, bathroom fixtures, changing tables or diaper pails.
5

How long does it take for COVID-19 symptoms to appear?

Symptoms usually appear 2 to 6 days after exposure to the virus. However, it sometimes takes longer — up to 14 days
6

Can a person who has been infected with COVID-19 get infected again?

The immune system responds to COVID-19 infection by stimulating white blood cells called lymphocytes to form antibodies that fight the infection. These antibodies and lymphocytes retain a temporary protective effect against reinfection. But it is only temporary. There have been many confirmed cases of reinfection with COVID-19. In other words, a person got sick with COVID-19, recovered, and then became infected again.

7

When are people infected with COVID-19 most likely to be contagious?

Researchers estimate that people who get infected with the coronavirus can spread it to others 2 to 3 days before symptoms start and are most contagious 1 to 2 days before they feel sick.
8

What happens if you take the second COVID-19 vaccine?

When you take two doses of a COVID-19 vaccine, the first dose is the first time for your body to see the spike protein that the COVID-19 vaccines produce, and your body begins to develop an immune response. But that happens slowly. Then when you come back with a second dose, your body is ready to attack it.
2. Umd.edu

BSCI 424 Pathogenic Microbiology -- Shigella

https://science.umd.edu/classroom/bsci424/pathogendescriptions/Shigell...

Shigella dysenteriae: causes most serious form of bacillary dysentery ... fecal-oral route primarily by contaminated hands (ingestion is portal of entry).

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