Among the virulence factors produced by staphylococcus aureus are hemolysin, coagulase, hyaluronidase, and enterotoxin. which of these factors contribute(s) to the ability of s. aureus to invade the body?
a) coagulase
b) enterotoxin
c) hemolysin
d) hyaluronidase
e) coagulase and hemolysin

A) coagulase

Explanation:

Diseases caused by Staphylococcus aureus may be due to direct tissue invasion, or exclusively due to toxins produced.

The mechanism of invasion of S. aureus, in the first moment, depends directly on the fact that this bacterium adheres to the skin or mucosa, thanks to coagulase (a component of the cell surface that ensures adherence to the epithelia), to then break through the barriers of the epithelium, compromising intercellular link structures, as desmosomes and adhesion joints.

After invasion of the epithelium, S. aureus uses several strategies to enable their survival and proliferation in the host organism, corresponding to the other virulence factors.

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the correct answer is - d. china has a large and growing population.

the fact that china has a large (the biggest) population, and it is still growing, doesn't hinder the agriculture production in the country. in fact, it can for increased production in the agriculture, since there's more labor force, as well the sheer mass of people produces lots of scientists that come up with new inventions as to how to improve this sector. nice example is the inner mongolia region in china, in general dominated by the gobi desert, but few scientist came up with a nice idea as to how to make the region productive by using plants that are very resistant to droughts, so lots of people have been employed, and the region is becoming greener and greener each year, and the production of food in this region is also increasing.