What's the difference between contagion and diffusion?

Contagion


Definition:

  • (n.) The transmission of a disease from one person to another, by direct or indirect contact.
  • (n.) That which serves as a medium or agency to transmit disease; a virus produced by, or exhalation proceeding from, a diseased person, and capable of reproducing the disease.
  • (n.) The act or means of communicating any influence to the mind or heart; as, the contagion of enthusiasm.
  • (n.) Venom; poison.

Example Sentences:

  • (1) It could provoke the gravest risk, that all three rating agencies declare a credit event and then there are big contagion risks for other countries," he said.
  • (2) "If ratings agencies see a rollover [of Greek debt] as a partial default, contagion to other peripheral eurozone countries will occur."
  • (3) In this context, the present article makes an analysis of the main ethical and legal problems posed by HIV infection, in the framework of Portuguese law, with special focus on: a) Conflict between the necessary protection of public health by the State and the protection of fundamental rights and freedoms of the citizens; b) Inadequacy of the existent laws to fight contagious diseases to HIV infection; c) Discrimination; d) Testing and compulsory hospitalization versus informed consent; e) Confidentiality; f) Voluntary contagion.
  • (4) And it is why, without a proper firewall to stop contagion spreading to other troubled economies such as Spain and Italy, a disorderly Greek exit would be catastrophic not only for Greece but for the rest of Europe and the world economy."
  • (5) But senior officials at the European commission in Brussels disclosed that a compromise was in the air to save Greece and halt contagion by levying a tax on banks in the eurozone – opposed by Berlin and proposed by Paris – as well as a long-term Greek debt rollover stretching for decades, and other measures aimed at reducing Greece's crippling debt level.
  • (6) The likely patterns of spatial contagion are indicated and the need for smaller-scale study is pointed out.
  • (7) Some suggest the party is concerned about longer term political shifts and the risk of contagion if people on the mainland begin to wonder why they cannot choose their leader like compatriots in Hong Kong.
  • (8) I am particularly worried about contagion from stress coming from the European banks and whether there might be linkages – perhaps indirect – between them and the largest UK banks,” Kashyap said.
  • (9) Without strong health systems in place, the higher the population density the more difficult it becomes to prevent and control outbreaks, and not just because of the increased risk of contagion.
  • (10) Lee Hardman, a currency strategist at Bank of Tokyo-Mitsubishi UFJ, said: "There is evidence of contagion from Greece.
  • (11) These include "a steeper than expected downturn in Europe, financial contagion related to the sovereign debt crisis, rapidly rising oil prices and geopolitical risks".
  • (12) The role of water, food and direct contagion in transmission of cholera over the last 20 years is considered in the light of recent studies and with special reference to the epidemic in Latin America, where the intense emotion aroused by the disease has prompted vigorous action that could produce significant and lasting progress in the health field.
  • (13) Above all it needs to happen soon, before the contagion, and the poisonous distrust it engenders, spread further.
  • (14) The response to AIDS illustrates that contagion has a social definition, even in the context of Western scientific medicine.
  • (15) Eurozone policymakers had been eager to shore up Spain's position before elections in Greece on 17 June that could push Athens closer to a eurozone exit and unleash contagion.
  • (16) "Contagion from Greece is what I would call thematic," says Michael Saunders, an economist at Citigroup.
  • (17) "The management has held out for fear of contagion.
  • (18) A sense of the end-times is also apparent in Rise of the Planet of the Apes and Contagion , where super-intelligent apes and killer microbes respectively are poised to wipe out mankind.
  • (19) One of the main conclusions of the article is that legislation, as a mean to fight HIV infection, must be essentially aimed to the increasing of educational and informational actions and not to the repression of situations which are, in rule, rare, as the voluntary or careless contagion.
  • (20) The only uncertainty is whether adults, with intradermal reactions to tuberculin should undergo chemoprophylaxis if the time of contagion is unknown and the subject does not show any particular risk factors.

Diffusion


Definition:

  • (n.) The act of diffusing, or the state of being diffused; a spreading; extension; dissemination; circulation; dispersion.
  • (n.) The act of passing by osmosis through animal membranes, as in the distribution of poisons, gases, etc., through the body. Unlike absorption, diffusion may go on after death, that is, after the blood ceases to circulate.

Example Sentences:

  • (1) The Na+ ionophore, gramicidin, had a small but significant inhibitory effect on Na(+)-dependent KG uptake, demonstrating that KG uptake was not the result of an intravesicular positive Na+ diffusion potential.
  • (2) The femoral component, made of Tivanium with titanium mesh attached to it by a new process called diffusion bonding, retains superalloy fatigue strength characteristics.
  • (3) The diffusion of Myocamicin in the prostatic tissue of patients undergoing prostatectomy after a single oral dose of 600 mg has been studied.
  • (4) The preembedding method also disclosed diffuse cytosolic immunoreactivity.
  • (5) The clinical aspects, the modality of onset and diffusion of the lymphoma, its macroscopic and histopathological features and the different therapeutic approaches are discussed.
  • (6) The kidney disease was characterized by diffuse beaded deposition of rat gammaglobulin along the glomerular capillaries and proteinuria.
  • (7) We identified four distinct clinical patterns in the 244 patients with true positive MAI infections: (a) pulmonary nodules ("tuberculomas") indistinguishable from pulmonary neoplasms (78 patients); (b) chronic bronchitis or bronchiectasis with sputum repeatedly positive for MAI or granulomas on biopsy (58 patients, virtually all older white women); (c) cavitary lung disease and scattered pulmonary nodules mimicking M. tuberculosis infection (12 patients); (d) diffuse pulmonary infiltrations in immunocompromised hosts, primarily patients with AIDS (96 patients).
  • (8) Sera from three of these patients gave a precipitin band in gel diffusion tests identical to that produced by a monospecific rabbit anti-E. granulosus antigen 5 serum, when tested against whole hydatid fluid.
  • (9) A constellation of histologic lesions was identified in brain (diffuse meningoencephalitis with bilaterally symmetrical thalamic necrosis), liver (pericholangiohepatitis), lung (pneumonitis), and spleen (lymphoid hyperplasia); this tetrad is apparently unique to this model system.
  • (10) Diffuse Ga-67 uptake in the kidneys was seen due to renal involvement with this disorder.
  • (11) Thus, whereas CD3-associated molecules isolated from polyclonal CD3+WT31+ populations (expanded in IL 2 under the same culture conditions) appeared as diffuse bands, CD3-associated molecules isolated from CD3+WT31- populations displayed a homogeneous molecular mass.
  • (12) The diffuse reaction product seen in basement membranes of ganglion and nerve may also be artifact.
  • (13) Here we determine the position of bound ADP diffused into the recA crystal.
  • (14) In contrast, boundary layer diffusion is operative in the release from the matrixes prepared by compression of physical mixtures.
  • (15) Medium molecules have been detected by two methods, gel filtration and screening technique, in patients with diffuse purulent peritonitis and with chronic renal insufficiency.
  • (16) This may be because the epithelium restricts diffusion of the drug or due to the production of a non-prostanoid factor which inhibits smooth muscle responsiveness.
  • (17) Ten of 11 diffuse poorly differentiated lymphocytic lymphomas were composed of cells with large amounts of surface immunoglobulin, whereas only 1 of 5 diffuse well differentiated lymphocytic tumors contained such abundant surface immunoglobulin.
  • (18) Thirty-six lesions imaged as vascular malformations with abnormal vessels or diffusely increased activity.
  • (19) We therefore conclude that the protective effect displayed by solid grafts might be a local process dependent on the release of diffusible trophic agents.
  • (20) These results demonstrate, in living human hearts, that diffuse coronary atherosclerosis is often present when coronary angiography reveals only discrete stenoses.