Meaning of Virulence

What is Virulence:

Virulence is a quality of virulent. In turn, virulent is used as an adjective to indicate that something is malignant or poisonous, in the case of medicine it is caused by a virus. The word virulence is of Latin origin "Virulentus" What does it mean "full of poison”.

As such, virulence measures the degree or capacity of the microorganism to cause harm, and pathogenicity indicates the quality or characteristic of the microorganism in question. Virulence varies depending on the host since a type of bacteria can be pathogenic for vertebrates in general and, a specific species of that bacterium can be pathogenic only for one genus of vertebrates.

The virulence of a pathogen can vary depending on the host. Thus, it may happen that a genus of bacteria is pathogenic for all vertebrates, but that a specific species of that bacterium is very virulent only for one species of vertebrates.

The synonyms of the word virulence are: malignancy, sharpness, irony, harshness, and so on. In view of the above, virulence is the sharp style or language that a person uses in a speech or text, for example: "today my mother spoke to me with such virulence and I have never seen her like this."

On many occasions, virulence is confused with violence or aggressiveness, which is a serious mistake, so it can be deduced that speaking with virulence has negative consequences since it causes confrontations with the recipient of the message and, it is a fault to use this type of language if what is sought is to convince or persuade an individual about a speech, argument, proposal, among others. Due to the existence, of other ways of communicating and with another tone or style, the healthiest thing is for the individual to take it into account and practice it to establish healthy relationships with other individuals, without generating rejection and, where necessary To achieve its objective, as for example a president should not and cannot have a speech with such virulence since it will attract the rejection of his followers, it is best to use a passive, unalterable, respectful tone and, thus, gain the population.

Virulence and pathogenicity

Virulence makes it possible to measure the capacity of a microorganism to cause a disease and it is expressed with a lethal dose 50 0 LD50, a value that refers to the minimum amount of microorganisms that cause infection in half of a population. It is noteworthy, the term pathogenicity points to the ability to develop and cause disease, so when a microorganism, be it bacteria, virus, fungus, has the ability or ability to produce disease, it is called pathogenic.

Virulence factors

Virulence factors are the intrinsic characteristics, the route of entry into the body, the effects of the host's defense mechanisms, and any component that is essential for the microorganism to cause disease and develop its ability to do so. It is noteworthy that a virulence factor is not an element that serves for the development of microorganisms in vitro, but that element necessary to invade the bloodstream is considered a virulence factor.

The elimination or reduction of the virulence of a microorganism is the basis of vaccination and these are called attenuated. Vaccination consists of the use of attenuated viruses, which are characterized by not causing harm to health but are capable of inducing an immune response.

Similarly, the host measure of pathogenesis is important because it can produce an aggressive response to infection and defense mechanisms cause damage to host tissues as the infection weakens.

Virulence and violence

Individuals and the media use the term virulence with that of violence. In this sense, a serious error is incurred since violence is related to abuse, forces, coercion and virulence, it is a speech or writing that stands out for being malicious or poisonous. That is why the term virulence should not be used when it is intended to indicate as a synonym for violent and, use the correct ones such as: devastating, impulsive, voracious, etc.

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