What's the difference between infectious and virulent?

Infectious


Definition:

  • (a.) Having qualities that may infect; communicable or caused by infection; pestilential; epidemic; as, an infectious fever; infectious clothing; infectious air; infectious vices.
  • (a.) Corrupting, or tending to corrupt or contaminate; vitiating; demoralizing.
  • (a.) Contaminating with illegality; exposing to seizure and forfeiture.
  • (a.) Capable of being easily diffused or spread; sympathetic; readily communicated; as, infectious mirth.

Example Sentences:

  • (1) The extent of the infectious process was limited, however, because the life span of the cultures was not significantly shortened, the yields of infectious virus per immunofluorescent cell were at all times low, and most infected cells contained only a few well-delineated small masses of antigen, suggestive of an abortive infection.
  • (2) Although antihistamines are widely used for symptomatic treatment of seasonal (allergic) rhinitis, the role of histamines in the pathogenesis of infectious rhinitis is not clear.
  • (3) Tumour necrosis factor (TNF), a polypeptide produced by mononuclear phagocytes, has been implicated as an important mediator of inflammatory processes and of clinical manifestations in acute infectious diseases.
  • (4) We present a mathematical model that is suitable to reconcile this apparent contradiction in the interpretation of the epidemiological data: the observed parallel time series for the spread of AIDS in groups with different risk of infection can be realized by computer simulation, if one assumes that the outbreak of full-blown AIDS only occurs if HIV and a certain infectious coagent (cofactor) CO are present.
  • (5) Solely infectious waste become removed hospital-intern and -extern on conditions of hygienic prevention, namely through secure packing during the transport, combustion or desinfection.
  • (6) Although they were praised in the last five years as the most efficient drugs against cancer and infectious diseases, no great success was clinically and experimentally reported in the past.
  • (7) It is clear that before general release of a new living feline infectious enteritis vaccine, there must be satisfactory evidence that concurrent infection will not affect the safety of the modified antigen.In cats infected with feline infectious enteritis there appears to be a short period, coinciding with the onset of leucopaenia, during which they are highly infectious.
  • (8) Infectious virus was recovered 3 years after infection from selected tissues of 12 of 17 CAEV(63)-infected goats and 11 of 18 CAEV(Co)-infected goats.
  • (9) These included: 1) association of infectious processes with other laboratory results; 2) a feeling of integration with the patient and health care team; and 3) the introduction of medical terminology.
  • (10) The diagnosis of acute infectious enterocolitis was rejected.
  • (11) However, blood with low HBeAg levels and free of detectable polymerase activity can still be infectious, since the polymerase reaction is rather insensitive compared to the radioimmunological HBeAg determination.
  • (12) It is anomalous that the world is equipped with global funds to finance action on infectious diseases and climate change, but not humanitarian crises.
  • (13) Rapid, on-site detection of chlamydial antigen in male FVU would shorten the infectious period by hastening diagnosis and treatment.
  • (14) The use of multifactorial experiment design, a model of infectious processes and immunomodulators alone or in combination with antibiotics is implied.
  • (15) The authors report the clinical case of an 18-year-old patient who presented with a symptomatic mass in the left upper quadrant 6 months after having infectious mononucleosis.
  • (16) A retrospective study of autopsy-verified fatal pulmonary embolism at a department of infectious diseases was carried out, covering a four-year period (1980-83).
  • (17) The p30 proteins of murine viruses also contain a second discrete set of antigenic determinants related to those in infectious primate viruses and endogenous porcine viruses, but not detected in the feline leukemia virus group.
  • (18) The organisms are transmitted transovarially, diaplacentally, via endometrium, before or after implantation, via amnion or by the semen when ascending through the infectious environment.
  • (19) The first is that the supposed exaggerated winter birthrate among process schizophrenics actually represents a reduction in spring-fall births caused by prenatal exposure to infectious diseases during the preceding winter--i.e., a high prenatal death rate in process preschizophrenic fetuses.
  • (20) The central nervous system of the animals sacrificed in the time course of the infectious process was studied by light and luminescent microscopy.

Virulent


Definition:

  • (a.) Extremely poisonous or venomous; very active in doing injury.
  • (a.) Very bitter in enmity; actuated by a desire to injure; malignant; as, a virulent invective.

Example Sentences:

  • (1) The combined analysis of pathogenesis and genetics associated with the salmonella virulence plasmids may identify new systems of bacterial virulence and the genetic basis for this virulence.
  • (2) Escherichia enterotoxigenic strains, Yersinia enterocolitica and Salmonella typhimurium virulent strains, Campylobacter jejuni clinical isolates possess more pronounced capacity for adhesion to enteric cells of Peyer's plaques than to other types of epithelial cells, which may be of importance in the pathogenesis of these infections.
  • (3) The results are consistent with our previous suggestion that lethality for virulent SFV infection results from a lethal threshold of damage to neurons in the CNS and that attenuating mutations may reduce neuronal damage below this threshold level.
  • (4) The results point out the importance of detecting specific virulence factors before incriminating water as a source of human diarrhea.
  • (5) We put forward the hypothesis that the agglutinability in acriflavine, together with the PAGE profile type II, may be associated with particular structures responsible for virulence.
  • (6) One mutant, BS260, was completely noninvasive on HeLa cells and mapped to a region on the 220-kb virulence plasmid in which we had previously localized several avirulent temperature-regulated operon fusions (A.E.
  • (7) The proteins of two HEV isolates, one apathogenic (HEV-A) and one virulent (HEV-V), resembled each other in most respects.
  • (8) The geometric mean titers of anti-Shigella antibodies to virulence plasmid-associated antigens in milk received before infection were eightfold higher in infants who remained well than in those in whom diarrhea developed.
  • (9) Presented are the clinical, pathologic, and virulence features of sudden death due to Group A beta-hemolytic streptococcus.
  • (10) Some of these strains have been used by investigators to study gonococcal virulence.
  • (11) With the faster rate of proliferation there was a corresponding increase in virulence.
  • (12) On average, clinical isolates were not more virulent than fecal isolates.
  • (13) Since the four determining coefficients may change over evolutionary time-scales, the mathematical results together with a natural selection argument proves that virulence gamma 2 attenuates.
  • (14) It also devalues the courage of real whistleblowers who have used proper channels to hold our government accountable.” McCain added: “It is a sad, yet perhaps fitting commentary on President Obama’s failed national security policies that he would commute the sentence of an individual that endangered the lives of American troops, diplomats, and intelligence sources by leaking hundreds of thousands of sensitive government documents to WikiLeaks, a virulently anti-American organisation that was a tool of Russia’s recent interference in our elections.” WikiLeaks last year published emails hacked from the accounts of the Democratic National Committee and John Podesta, chairman of Hillary Clinton’s election campaign.
  • (15) Understanding the molecular biology of a virulence factor also provides information about potential targets for future therapies and preventive modalities.
  • (16) This ability may be associated with virulence, because an attenuated strain of L. pneumophila fails to multiply within this protozoan, whereas a virulent strain increases 10,000-fold in number when coincubated with T. pyriformis.
  • (17) Combinations of factors were generally more predictive for defining virulent clones, particularly in infants defined as being at normal risk of developing septicaemia.
  • (18) Strain IIBNV6, however, complemented with all virulent strains tested.
  • (19) Measurable activity on day 7 depended on infectious virus dose, virus virulence, and non-H-2 genetic background of the host.
  • (20) A related mechanism is proposed for the control of the virulence of animal viruses.