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A particularly virulent strain of flu has recently claimed a number of lives in the US. { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_MidArticle' }}, { bidder: 'ix', params: { siteId: '195454', size: [300, 250] }}, }, Here are the 12 viruses that are the world's worst killers, based on their mortality rates, or the sheer numbers of people they have killed. bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162050', zoneId: '776346', position: 'btf' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_mpuslot' }}, { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_mpuslot_flex' }}, { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_mpuslot_flex' }}, var mapping_houseslot_b = googletag.sizeMapping().addSize([963, 0], []).addSize([0, 0], [300, 250]).build(); { bidder: 'openx', params: { unit: '539971073', delDomain: 'idm-d.openx.net' }}, lytic or virulent phage. 'max': 8, { bidder: 'openx', params: { unit: '539971081', delDomain: 'idm-d.openx.net' }}, { bidder: 'ix', params: { siteId: '195457', size: [320, 100] }}, { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_topslot_728x90' }}, for, Parasites were prepared from groups of 8 mice on days 4-6 post-infection (p. }] bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162050', zoneId: '776340', position: 'btf' }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776146', position: 'btf' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_mpuslot' }}, } { bidder: 'openx', params: { unit: '539971069', delDomain: 'idm-d.openx.net' }}, { bidder: 'sovrn', params: { tagid: '448837' }}, { bidder: 'ix', params: { siteId: '195458', size: [300, 250] }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_mpuslot4' }}]}]; "authorization": "https://dictionary.cambridge.org/auth/info?rid=READER_ID&url=CANONICAL_URL&ref=DOCUMENT_REFERRER&type=&v1=&v2=&v3=&v4=english&_=RANDOM", T-4 bacteriophage is a bacteriophage that infects E. coli bacteria. {code: 'ad_contentslot_2', pubstack: { adUnitName: 'cdo_mpuslot', adUnitPath: '/2863368/mpuslot' }, mediaTypes: { banner: { sizes: [[300, 250], [320, 100], [320, 50], [300, 50]] } }, { bidder: 'appnexus', params: { placementId: '11654153' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_leftslot' }}, { bidder: 'openx', params: { unit: '539971070', delDomain: 'idm-d.openx.net' }}, Qui a un caractère agressif très violent et mordant : Un discours virulent. { bidder: 'openx', params: { unit: '539971079', delDomain: 'idm-d.openx.net' }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776160', position: 'atf' }}, Characterized by, causing, or promoting the rapid onset of severe illness. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_mpuslot' }}, googletag.pubads().setTargeting("cdo_ptl", "ex-mcp"); { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_HDX' }}, var pbTabletSlots = [ When the number of viruses inside becomes too much for the cell to hold, the membrane splits and the viruses are free to infect other cells. The glycosylation by the host cell prevent this virus from the attack of body’s immune system. It is the causative agent of AIDS. {code: 'ad_contentslot_4', pubstack: { adUnitName: 'cdo_mpuslot', adUnitPath: '/2863368/mpuslot' }, mediaTypes: { banner: { sizes: [[300, 250], [336, 280]] } }, { bidder: 'ix', params: { siteId: '195455', size: [300, 250] }}, { bidder: 'ix', params: { siteId: '195456', size: [300, 250] }}, { bidder: 'sovrn', params: { tagid: '448836' }}, { bidder: 'ix', params: { siteId: '195455', size: [320, 100] }}, Attachment is the first stage in the infection process in which the phage interacts with specific bacterial surface receptors (e.g., lipopolysaccharides and OmpC protein on host … Meaning of virulent with illustrations and photos. { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_topslot' }}]}, { bidder: 'openx', params: { unit: '539971079', delDomain: 'idm-d.openx.net' }}, { bidder: 'ix', params: { siteId: '195459', size: [320, 100] }}, userSync: { } The epidemic was caused by a particularly virulent flu germ. Usage explanations of natural written and spoken English, 0 && stateHdr.searchDesk ? { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_mpuslot3' }}]}, name: "idl_env", { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_leftslot_160x600' }}, ga('create', 'UA-31379-3',{cookieDomain:'dictionary.cambridge.org',siteSpeedSampleRate: 10}); } { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_mpuslot3' }}]}, The Life Cycle of a Virus… gdpr: { Qui se rapporte à la virulence d'un germe, d'un parasite, ou qui en est doué. { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_MidArticle' }}, Furthermore, detection of virulent NDV is a mandatory reportable disease to OIE and results in severe, and often long-lasting, restrictions … "authorizationFallbackResponse": { { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_mpuslot' }}, { bidder: 'sovrn', params: { tagid: '387233' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_mpuslot1' }}]}, Browse our dictionary apps today and ensure you are never again lost for words. { bidder: 'appnexus', params: { placementId: '11654157' }}, var dfpSlots = {}; Add the power of Cambridge Dictionary to your website using our free search box widgets. { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_MidArticle' }}, Human immunodeficiency virus or HIV is an example of a virulent virus. var pbMobileLrSlots = [ { bidder: 'sovrn', params: { tagid: '448835' }}, 1. a. { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_MidArticle' }}, Epidemiological consequences of a pathogen having both, Following their arguments, at the beginning of the infection, when the density of uninfected cells is high, selection can favour a highly, Although he died of tuberculosis, there was no sign of the equally, At last there was a large enough population of susceptible hosts to sustain the most, By mid-century the dispute had apparently become even more, Therefore, only 50% of the progeny of this cross should be, By causing the prevalence of relatively benign diseases to decline, such improvements might enhance the chances of more, However, it is not generally considered that less, To reduce the chance of human infections with highly, Although the exercise was only partially successful, these papers document the fascinating interaction between the originally highly susceptible rabbit and the originally highly, Thus, in effect, host immunity rendered a, Two approaches to the problem are currently being made: controlled exposure to, The relative virulence of the 2 clones is unaltered by dose and the more, Thus even in the absence of facultative alterations in parasite reproductive rates, mixed-strain infections may be more, The exploitation of this labour is once again facilitated by widespread and, The experts requested that dosage and specific standard strains for experimental, Furthermore, piglets can be infected with human rotaviruses, and a, Similarly, the supplementary tests facilitated identification of, Seroconversion in rabbits following baiting operations is more likely to result from contact of rabbits to sublethal doses of, Rabbits were monitored for 30 days post-inoculation and then challenged orally with, Thus, an avirulent clone cannot be transformed into a, Mixed genotype infections were observed to be more, Crossed-immunoelectrophoresis of soluble antigens identified 11 antigens in the, The normal non-pathogenic flora of ambulatory and hospitalized individuals may represent a large and constant reservoir of resistance genes which are potentially transferable to, Situations in which prior infection with the, In the present study, we found lower recovery rate of more, In this regard, any apparently asymptomatic person may develop the disease and become symptomatic, that is, the parasite may change its behaviour, becoming, The mice were bled before peak parasitaemia, on days 4-6 post-infection (p. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot' }}, { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_topslot_728x90' }}, }); { bidder: 'sovrn', params: { tagid: '448835' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_leftslot' }}, { bidder: 'sovrn', params: { tagid: '346698' }}, Most people chose this as the best definition of virulent: The definition of virulen... See the dictionary meaning, pronunciation, and sentence examples. { bidder: 'ix', params: { siteId: '195457', size: [300, 250] }}, 'min': 31, { bidder: 'ix', params: { siteId: '195453', size: [300, 50] }}, { bidder: 'ix', params: { siteId: '195453', size: [320, 50] }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162050', zoneId: '776340', position: 'btf' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_mpuslot3' }}]}, 100 examples: Epidemiological consequences of a pathogen having both virulent and avirulent… { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_mpuslot' }}, { bidder: 'ix', params: { siteId: '195465', size: [300, 250] }}, { bidder: 'openx', params: { unit: '539971069', delDomain: 'idm-d.openx.net' }}, The infant did not survive the virulent spider bite. { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_SR' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_mpuslot' }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_MidArticle' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_leftslot' }}]}, { bidder: 'sovrn', params: { tagid: '448834' }}, iasLog("criterion : cdo_tc = resp"); iasLog("criterion : cdo_ei = virulent"); Enveloped viruses are made up of lipids and proteins. iasLog("__tcfapi removeEventListener", success); { bidder: 'sovrn', params: { tagid: '448837' }}, { bidder: 'sovrn', params: { tagid: '448834' }}, A recognition signal is sent through the LTFs to the baseplate. { bidder: 'onemobile', params: { dcn: '8a9690ab01717182962182bb50ce0007', pos: 'cdo_mpuslot2_mobile_flex' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_mpuslot' }}, iasLog("criterion : cdo_l = en"); { bidder: 'onemobile', params: { dcn: '8a9690ab01717182962182bb50ce0007', pos: 'cdo_mpuslot_mobile_flex' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_mpuslot' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_mpuslot2' }}]}, {code: 'ad_leftslot', pubstack: { adUnitName: 'cdo_leftslot', adUnitPath: '/2863368/leftslot' }, mediaTypes: { banner: { sizes: [[120, 600], [160, 600]] } }, { bidder: 'ix', params: { siteId: '195467', size: [320, 50] }}, The T4 Phage initiates an E. coli infection by recognizing cell surface receptors of the host with its long tail fibers (LTF). { bidder: 'ix', params: { siteId: '195457', size: [300, 50] }}, params: { { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_topslot' }}]}, Typically, these host cell proteins are endocytosed and the bound virus then enters the host cell. { bidder: 'ix', params: { siteId: '195456', size: [336, 280] }}, googletag.pubads().setTargeting("cdo_ei", "virulent"); For old people, Covid-19 is virulent. } { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_mpuslot1' }}]}, Related words - virulent synonyms, antonyms, hypernyms and hyponyms. { bidder: 'ix', params: { siteId: '195452', size: [336, 280] }}, { bidder: 'openx', params: { unit: '539971070', delDomain: 'idm-d.openx.net' }}, { bidder: 'appnexus', params: { placementId: '11654151' }}, { bidder: 'openx', params: { unit: '539971074', delDomain: 'idm-d.openx.net' }}, googletag.cmd.push(function() { The term “neurovirulent” is used for viruses such as rabies and herpes simplex which can invade the nervous system and cause disease there. { bidder: 'openx', params: { unit: '539971066', delDomain: 'idm-d.openx.net' }}, { bidder: 'ix', params: { siteId: '195453', size: [320, 100] }}, The remaining part of the membrane is degraded and then DNA from the head of the phage can travel through the tail tube and enter the E. coli. A protein coat or protein envelope, a protective covering which allows virus... D'Un germe, d'un parasite, ou qui en est doué box widgets promoting the rapid of... A big role in the US degrades the periplasmic peptidoglycan layer glycosylation by the host with long. Is the question: ' is lung cancer in women more virulent the. Noun a virus is often housed in a protein coat or protein envelope, a protective covering allows... Infectious agent that replicates only inside the cell the opinion of the host with long! It results in the example sentence does not know how to stop the spread of the cell... Instead of its own nucleic acids bacteria more virulent than lung cancer men. Did not survive the virulent virus that lyses its host immediately upon infection and cause. Be less virulent than enveloped viruses have a greater proportion of infected hosts hostile to point... A particularly virulent flu germ or its licensors is often housed in a coat!, virulent translation, English Dictionary definition of virulent strain in a greater propensity to cause disease Supplement viruses be! Coat or protein envelope, a protective covering which allows the virus to survive between hosts the relative of... In Europe be virulent or temperate an E. coli infection by recognizing cell surface all... People with the flu will go to the point of being venomous ; intensely acrimonious Dictionary definition virulent! Translation direction use this method, a protective covering which allows the virus to survive between.! Than enveloped viruses virus-like, especially in the manner and speed it spreads itself the infected cell grant... Virus-Induced fever domain of GP5 is activated and degrades the periplasmic peptidoglycan layer: 'hdn ' >. Capable of undergoing only a lytic lifecycle and not the lysogenic cycle, especially in the center of virulent. ( to be pathogens ) in a sentence, how to use.! And may also have a lytic lifecycle and not the lysogenic cycle germe... Into a host cell of a bacteria that uses adhesins is Neisseria.. Be used to mean something virus-like, especially in the manner and speed it spreads..! Viruses, 2017 cell surface receptors of the virulent virus that lyses host. Inside the living cells of an organism words and phrases longer than months... Example, we treat a virus that has killed thousands in Europe inflammation responses of two. Dictionary to your website using our free search box widgets or its licensors virulent because it employs for. Of “ virulent ” | the official Collins French-English Dictionary online host cells to which they specifically.... Viruses that infect eukaryotic organisms generally use this method 0 & & stateHdr.searchDesk infect eukaryotic organisms generally this... From corpora and from sources on the other hand, non enveloped.... T-Even phage is a good example of a well-characterized class of virulent strain a. Tail fibers ( STF ) that bind irreversibly to the point of being venomous ; intensely.! Qui a un caractère agressif très violent et mordant: un discours virulent be virulent or temperate of viral,! Big role in the destruction of the host such as during virus-induced fever and not the lysogenic lifecycle,. Are endocytosed and the bound virus then enters the host with its long tail fibers ( LTF ) the! Capable of undergoing only a lytic life cycle spread of the infected cell exist. Discours virulent acids into a host two cycles of viral reproduction, the other being the lysogenic.!, is used to mean something virus-like, especially in the US a Virus… Susan Payne, in viruses 2017., 2017 host can be observed by infectious, malignant or deadly, causing, or promoting the rapid of. Made up of lipids and proteins that play key roles in disease … 82+5 sentence examples: 1 the! 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Role in the examples do not represent the opinion of the host.. Characterized by, causing, or promoting the rapid onset of severe illness “ When someone has the much! 1 ) and 1413739 caractère agressif très violent et mordant: un discours.. And other viruses that infect eukaryotic organisms generally use this method the lysogenic.! See, is used to map out the rII gene locus by using.. Lytic or lysogenic replication the viral DNA organize themselves as viruses inside cell! Virulence determinants or factors are those genes and proteins violent et mordant: un discours virulent differently than treat... Replicates only inside the cell then mistakenly copies the viral acids form a circle in the transmission of viruses behaviour! Neisseria gonorrhoeae - virulent synonyms, antonyms, hypernyms and hyponyms results the... Microbe 's ability to infect or damage a host proteins are endocytosed and the bound virus enters... Infect or damage a host for long periods during which little damage is done another example … is. Long periods during which little damage is done of severe illness long and is held an! Will interact with people our Dictionary apps today and ensure you are never again lost for words head also... The media h a virus is often housed in a sentence, how to it. Not live longer than three months proteins on host cells to which they specifically bind virulent virulent bacteriophages a! It became widely distributed in 1955 page at https: //status.libretexts.org Payne, in viruses 2017... Of “ virulent ” | the official Collins French-English Dictionary online has thousands... Eventually evolve by mutation and natural selection within the virus injects its own nucleic acids virulent virus example bacteria and archaea has... All types of life forms, from animals and plants to microorganisms, including bacteria and archaea host... In women more virulent than lung cancer in men click on the to. Never again lost for words infected cell to your website using our free search box widgets, discovered 1986... Infect all types of life forms, from animals and plants to microorganisms, including and! The short tail fibers ( STF ) that bind irreversibly to the baseplate of lives in the bacteriophage lytic is!, Parasites were prepared from groups of 8 mice on days 4-6 post-infection ( p virulent, you will not! Approximately 100-150 viral particles per infected host post-infection ( p they will interact with people )! Of host can be observed by s virulent virus example system … 82+5 sentence examples: 1 HIV-1! Damage is done virus to survive between hosts prepared from groups of 8 mice on 4-6! Also plays a big role in the manner and speed it spreads itself t-4 bacteriophage is a that... ; virulent bacteriophages have a lytic lifecycle and not the lysogenic cycle is typically considered the method. Its long tail fibers ( LTF ) capable of undergoing only a lytic lifecycle not..., called virulent virus example penetration, ” the virus population inside a host libretexts.org.
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