In a previous paper I reviewed briefly the history of preventive inoculation and described the results of my attempts to secure a 'virus fixe' in the case of cholera.
Once the virus was fixed, it was to be cultivated for twenty-four hours on a solid medium, and a first vaccine prepared by carbolizing that virus.
The knowledge that the virus is confined to the saliva," he opines, "will settle a matter that has been the cause of considerable uneasiness.
Is it, indeed, possible for any of the secretions of an animal to be in a healthy state, and fit for human food, after it has had the virus of a rabid dog circulating in its system for at least five weeks?
He laid hold of the murderous virus of splenic fever, and succeeded in rendering it, not only harmless to life, but a sure protection against the virus in its most concentrated form.
According to Pasteur a virus has different degrees of virulence; it can pass from the weakest virulence to the maximum.
Is not the attenuation of the virus by the influence of the air one of the factors in the extinction of great epidemics?
The impossibility of action of the progressive virus and of the deadly virus is thus accounted for.
Some days later these twenty-five sheep, as well as the twenty-five remaining ones, were to be inoculated with the virus of virulent splenic fever.
Questions multiply as the facts relating to the attenuation of a virus suggest inductions, awaken ideas, and throw new lights upon a problem which, until within these last few years, has remained so obscure.
The whole question of vaccination resolves itself into knowing at what moment a certain degree of virus attenuation is a guarantee of protection against the mortal virus.
Pasteur affirms that it is the oxygen of the air which, by lengthened contact, weakens the virus and converts it into a true vaccine.
When the first point attacked by the virusis the spinal marrow, or certain portions of it, a general paralysis often precedes death.
A virus might consist not of amorphous matter, but of microscopic beings.
The second virus will preserve them from the attacks of a third virus, and thus passing from virus to virus they end by being guaranteed against the most deadly virulences.
Consider the effect produced upon the system by a microscopic quantity of the virus of smallpox.
It is this: That the thing which we vaguely call a virus is to all intents and purposes a seed.
That virus is, to all intents and purposes, a seed.
Sanderson's experiments render it in the highest degree probable, if they do not actually demonstrate, that the virusof small-pox is 'particulate.
Dr Parkes recommends the patient to be put in the top room of the house or hospital, since there is strong evidence to show that the contagious virus is volatile and ascends through the atmosphere.
The drinking water in troughs and even running water may hold the virus and be a means of its communication to other animals, even at a distance.
Rabies is a contagious disease, which is usually transmitted by a bite and by the introduction of a virus contained in the saliva of an affected animal.
It may assume from the outset an acute or chronic form, according to the susceptibility of the animal infected, and this does not depend upon the character of the disease from which the virus was derived.
The probability of the virus being spread by an intermediate host, such as flies, mosquitoes, internal parasites, etc.
When a horse is known to have been bitten by a rabid animal, immediate cauterization of the wound with a red-hot iron may possibly destroy the virus before absorption of it takes place.
They may infect others directly or they may scatter the virus about and the surroundings may become the future source of infection.
Such virus carriers are no doubt responsible for numerous outbreaks of this disease when, in a locality free from the disease, it certainly appears after the introduction of an apparently healthy animal.
He admitted the existence of a virus which communicated the disease from an infected animal to a sound one.
While a virus from a case of glanders if inoculated into an animal of the genus Equus will inevitably produce the disease, we find a vast difference in the contagious activity of different cases of glanders.
His experiments showed that the virus of influenza is excessively diffusible, and that it will spread rapidly to the roof of a building and pass by the apertures of ventilation to others in the neighborhood.
If in the dust, dried hay, or on the parched pasture of late summer, the virus may be inhaled and be absorbed from the lining of the lungs.
The specific virus of anthrax was first discovered by Davaine in 1851.
Vaughan complied with this request by sending the virus and asked Jefferson to do likewise, stating that "the Vaccine inoculation gathers strength hourly, no respectable practitioner (of Philadelphia) opposes it.
He asked Vaughan to send him some fresh vaccine virus and stated that six children in his own family had never "had that disease, besides a lengthy list of Black people, both young and old.
The few South Africans suffering from this virus are almost exclusively recruited amongst the populations of the late Republics of South Africa.
New efforts, better guarded against a compromising responsibility, to instil the virus in the body politic, are tried over again.
It is a poor consolation for the French Canadians to hear from the Nationalist leader that they are less infested with the mercantile virus than their brothers of the British races.
He concludes his Introduction by saying: 'It seems probable that London still contained sufficient plague virus to start a fresh epidemic, when the local and temporary conditions were favourable.
The cockroach as an experimental vector of thevirus of spontaneous mouse encephalomyelitis (Theiler).
The virus was also isolated from the cockroaches' feces and rarely from the fat bodies and reproductive organs.
Periplaneta americana= Viruses: Unspecified strain(s) of poliomyelitis virus (host may have been P.
The recovery of poliomyelitisvirus after parenteral introduction into cockroaches and houseflies.
The virus could also be transmitted through the feces of wild mice if the mice happened to feed on virus-infected cockroaches.
Periplaneta brunnea= Viruses: Unspecified strain(s) of poliomyelitis virus (host may have been P.
If the virus "took" the child was declared immune to the bacteria of ignorance, illiteracy, stupidity and other prevalent social complaints.
If the virus did not take the schoolmaster ostentatiously washed his hands of the recreant.
By this time there is no doubt that his mind was becoming affected by repeated disappointments, and that the family virus was beginning to manifest itself in him.
The work was begun in a frenzy of genius, but was constantly interrupted by doubts and indecision; it became a monomania, and under its influence Claude's mind gradually became unhinged; the family virus was at last showing itself.
Both variolation and vaccination may be described as active immunisation by means of an attenuated form of the specificvirus causing the disease.
By this term may be understood the actual transmission from the mother to the unborn child of the specific virus of the disease.
Farm soils have, as is well known, been contaminated with anthrax in the late summer or autumn, and have retained the infectious virus till the following spring, and it has even then cropped up again in the hay of the next season.
Inoculating cholera virus against cholera has been made illegal, as variolation was in 1840.
And whilst this may accurately produce a vacuum, it is far from easy to introduce the viruswithout also reintroducing oxygen.
Inoculation, or inserting virus through a broken surface of skin, is itself a sufficiently obvious mode of infection to call for little comment.
At the same Congress Besnier declared in favour of the infective virus being widely propagated by means of the nasal secretion.
The nature of the specific virus of both small-pox and cow-pox awaits discovery.
Probably it is true that what are known as hereditary diseases are due far more to a hereditary predisposition than to any transmission of the virus itself in any form.
The infective oyster must be fed upon infected sewage, and still contain the virus in its substance.
He conceived the idea that the virus of cow-pox might undergo some change which deprived it of its protective power, while still enabling it to communicate a disease to human beings.
The disease thus transferred ran its ordinary course without any ill effects, and the boy was afterwards inoculated with the virus of small pox, which produced no effect.
Following up the inquiry from this point, he at length discovered that the virus was capable of imparting protection against small-pox only in a certain condition of the pustule.
A very curious adaptation of means to ends in the modification of the virus is its swiftly fatal effect on birds.
Serpent virus is specifically a bird poison; in other words, it acts instantaneously in cases where a few moments' delay would defeat the purpose of the snap bite.
But the electric current, rightly selected and scientifically applied, destroys or neutralizes the virus and restores the normal polarization, and so effects a cure.
Cowpox is like a mild form of smallpox, and the introduction of this virusgives complete immunity to smallpox for several years after vaccination.
First experimenting upon chickens and later with cattle, he proved that by making a virus (poison) from the germs which caused certain diseases he could reduce this virus to any desired strength.
Another function of the board of health is the preparation and distribution of vaccine (material containing the virus of cowpox).
He then inoculated the animals with the virus of reduced strength, giving the inoculated animals a mild attack of the disease, and found that this made them immune from future attacks.
And if perchance he was saved--if that virus was sucked out of his veins, it was she--Helen!
Already he felt the deadly virus pulsing through his veins.
And the ship had brought back its life--a virus against which terrestrial medicine was powerless.
Some suggested that the virus had died because Earth's environment had eventually proved hostile to it.
The whole of the animal's body, therefore, no matter which fragment be submitted to the steeping process, yields the virus that so greatly pricks my curiosity.
The virus of corruption is introduced; and, if not treated in time, the wound proves fatal.
The grub, therefore, has undergone inoculation by the virus through the fine openings effected by the Chalcidid.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "virus" in a variety of sentences. We hope that you will now be able to make sentences using this word.
