virus
... cells in one host species (species specific) • Host range is determined by specific host attachment sites (viral receptors) and the availability of cellular factors within the (potential) host ...
... cells in one host species (species specific) • Host range is determined by specific host attachment sites (viral receptors) and the availability of cellular factors within the (potential) host ...
avian influenza in ostriches - Sudan University of Science and
... sensitivity and amino acid sequencing can be used diagnostically to determine whether or not an isolate is potentially pathogenic. A particular isolate may produce severe disease in one species but not in other species. For this reason it is impossible to generalize on the host range for the highly ...
... sensitivity and amino acid sequencing can be used diagnostically to determine whether or not an isolate is potentially pathogenic. A particular isolate may produce severe disease in one species but not in other species. For this reason it is impossible to generalize on the host range for the highly ...
Banana bunchy top virus
... (Karan et al., 1994; JL Dale, Brisbane, personal communication, 1996). The 'South Pacific' group comprises isolates from Australia, Fiji, Western Samoa, Tonga, Burundi, Egypt and India, whilst the 'Asian' group comprises isolates from the Philippines, Taiwan and Vietnam. These differences are presen ...
... (Karan et al., 1994; JL Dale, Brisbane, personal communication, 1996). The 'South Pacific' group comprises isolates from Australia, Fiji, Western Samoa, Tonga, Burundi, Egypt and India, whilst the 'Asian' group comprises isolates from the Philippines, Taiwan and Vietnam. These differences are presen ...
Risk assessment on the importation of milk and milk products
... heated at 93°C for 15 sec. F M D V survived in whole milk which was heated at 72°C for 5 min and then evaporated. The virus survived in skimmed milk after this was heated at 72°C for 15 sec, but not when it was heated at 72°C for 30 sec and then evaporated. Most of the h e a t e d samples were found ...
... heated at 93°C for 15 sec. F M D V survived in whole milk which was heated at 72°C for 5 min and then evaporated. The virus survived in skimmed milk after this was heated at 72°C for 15 sec, but not when it was heated at 72°C for 30 sec and then evaporated. Most of the h e a t e d samples were found ...
Human Swine Flu/Influenza A - Alpha Diagnostic International
... Influenza spreads between humans when infected people cough or sneeze, then other people breathe in the virus or touch something with the virus on it and then touch their own face. Swine flu cannot be spread by pork products, since the virus is not transmitted through food. The swine flu in humans i ...
... Influenza spreads between humans when infected people cough or sneeze, then other people breathe in the virus or touch something with the virus on it and then touch their own face. Swine flu cannot be spread by pork products, since the virus is not transmitted through food. The swine flu in humans i ...
Surface Structure and RNA-Protein Interactions of Foot-and
... with FMDV of serotype A, subtype 10, strain Argentina 1961 (A61) and the virus particles were radioactively labelled by the addition to the culture medium of [35S]methionine (150 ~tCi/flask), [3H]leucine (300 ~tCi/flask) or [3H]uridine (500 ~tCi/flask). For labelling with amino acids, medium lacking ...
... with FMDV of serotype A, subtype 10, strain Argentina 1961 (A61) and the virus particles were radioactively labelled by the addition to the culture medium of [35S]methionine (150 ~tCi/flask), [3H]leucine (300 ~tCi/flask) or [3H]uridine (500 ~tCi/flask). For labelling with amino acids, medium lacking ...
Prevalence of Acute Lower Respiratory Tract Infections due to
... lowest prevalence of RSV (16.7%) was seen in summer (figure 1) and there was a significant relation between season and prevalence of RSVs (P=0.22). There is a mounting interest in the hypothesis that RSV infection in the early childhood is an important risk factor for the subsequent development of r ...
... lowest prevalence of RSV (16.7%) was seen in summer (figure 1) and there was a significant relation between season and prevalence of RSVs (P=0.22). There is a mounting interest in the hypothesis that RSV infection in the early childhood is an important risk factor for the subsequent development of r ...
Zika virus, emergencies, uncertainty and vulnerable populations
... appearance has been limited and more mild, and observed because of sporadic human cases in Africa and Asia.3 In 2007, a Micronesian outbreak resulted in an estimated 7 of 10 child and adult residents becoming infected.4 Despite this astounding attack rate and mild increase in detection with post-out ...
... appearance has been limited and more mild, and observed because of sporadic human cases in Africa and Asia.3 In 2007, a Micronesian outbreak resulted in an estimated 7 of 10 child and adult residents becoming infected.4 Despite this astounding attack rate and mild increase in detection with post-out ...
FAT - OIE
... Production and distribution of diagnostic reagents Diagnostic reagents are prepared both for regional laboratories nationally, and for other countries. Materials supplied include known positive and negative sera for use as test controls, FITC conjugated antiserum for viral antigen detection, prepare ...
... Production and distribution of diagnostic reagents Diagnostic reagents are prepared both for regional laboratories nationally, and for other countries. Materials supplied include known positive and negative sera for use as test controls, FITC conjugated antiserum for viral antigen detection, prepare ...
Pathogenesis, latency and reactivation of infections by
... contain a reduced amount of infectious virus; (b) the static state: no productive infection occurs in latently infected cells where the genetic information of virus is at least retained, since infectious virus can be recovered by in vitro cultivation of these cells. The second hypothesis is the most ...
... contain a reduced amount of infectious virus; (b) the static state: no productive infection occurs in latently infected cells where the genetic information of virus is at least retained, since infectious virus can be recovered by in vitro cultivation of these cells. The second hypothesis is the most ...
Recognising exotic diseases of pigs
... lethargy. Reproductive losses are evident over the following 1-4 months where pre-weaning mortality may increase to 50-60% as a result of starvation/diarrhoea/fading. ...
... lethargy. Reproductive losses are evident over the following 1-4 months where pre-weaning mortality may increase to 50-60% as a result of starvation/diarrhoea/fading. ...
A single silent substitution in the genome of Apple stem grooving
... encodes a protein with conserved motifs for both movement proteins (MP) and viral proteases (Yoshikawa et al., 1992; Ohira et al., 1995). The expression strategies of these ORFs are not yet well understood. By using an antiserum against purified ASGV particles, the expected 241 kDa polyprotein for O ...
... encodes a protein with conserved motifs for both movement proteins (MP) and viral proteases (Yoshikawa et al., 1992; Ohira et al., 1995). The expression strategies of these ORFs are not yet well understood. By using an antiserum against purified ASGV particles, the expected 241 kDa polyprotein for O ...
First confirmation of Herpes Virus Anguillae (HVA) and Infectious
... been isolated also from pooled tissues including kidney. Kidney seems to be one of the most suitable organs for IPNV diagnostic purposes in fish (Yamamoto, 1975). Although Herpesvirus-like particles were observed by TEM in all gill samples, only one sample tested positive for HVA with IFAT. It could ...
... been isolated also from pooled tissues including kidney. Kidney seems to be one of the most suitable organs for IPNV diagnostic purposes in fish (Yamamoto, 1975). Although Herpesvirus-like particles were observed by TEM in all gill samples, only one sample tested positive for HVA with IFAT. It could ...
Infectious in vitro RNA transcripts derived from cloned cDNA of the
... clone; this mutation was detected. This base transition was not due to random variation of RNA molecules because it was conserved in several independently sequenced AT and NAT cDNA clones (data not shown). This paper reports the isolation of the first infective RNA transcript of a cucurbit potyvirus ...
... clone; this mutation was detected. This base transition was not due to random variation of RNA molecules because it was conserved in several independently sequenced AT and NAT cDNA clones (data not shown). This paper reports the isolation of the first infective RNA transcript of a cucurbit potyvirus ...
Virus survival in the environment
... submitted for virus assay in cell cultures (23). CMV was isolated from those objects which had come in direct contact with infected secretions, i.e. from six of eight oronasal suction bulbs, one feeding tube, four dry diapers in contact with genitalia, and from a pair of gloves worn by a nurse. Whil ...
... submitted for virus assay in cell cultures (23). CMV was isolated from those objects which had come in direct contact with infected secretions, i.e. from six of eight oronasal suction bulbs, one feeding tube, four dry diapers in contact with genitalia, and from a pair of gloves worn by a nurse. Whil ...
Antibody and Virus: Binding and Neutralization
... are elicited to envelope proteins. Some of these antibodies bind to envelope spikes on the virion, some bind to nonvirion forms of the envelope (“viral debris”), and some bind to both. The relative amounts of different antibody types elicited varies from virus to virus. There is general agreement th ...
... are elicited to envelope proteins. Some of these antibodies bind to envelope spikes on the virion, some bind to nonvirion forms of the envelope (“viral debris”), and some bind to both. The relative amounts of different antibody types elicited varies from virus to virus. There is general agreement th ...
... ticks or from their faeces, cannot be totally excluded. Currently very little, if any, data are available about the survival of poxviruses in tick vectors, and it is not known if infected ticks secrete the virus into their faeces. Although poxviruses are known to be stable and to survive for long pe ...
Malware - Jackson State University
... A virus cannot be completely invisible as it has to be somewhere in the memory to execute. Also, the viruses execute in particular ways, using certain methods to spread. A virus signature is a characteristic byte-pattern that is part of a certain virus or family of viruses. A virus signature is used ...
... A virus cannot be completely invisible as it has to be somewhere in the memory to execute. Also, the viruses execute in particular ways, using certain methods to spread. A virus signature is a characteristic byte-pattern that is part of a certain virus or family of viruses. A virus signature is used ...
An Effective Scheme for Email Virus Detection and
... are different for different viruses. Also, one email virus can use arbitrary subject line, attachment file name. By zip the virus program and other irrelevant files together, a virus can also freely change the size of the attachment. Obviously, none of these is credible detection criterion. A more c ...
... are different for different viruses. Also, one email virus can use arbitrary subject line, attachment file name. By zip the virus program and other irrelevant files together, a virus can also freely change the size of the attachment. Obviously, none of these is credible detection criterion. A more c ...
Everything You Need To Know About Molluscum
... small bumps that go away without ever being noticed. Molluscum does not affect internal organs, even in people with very low immunity. Like many other viral infections, molluscum always resolves without treatment. However, the number and size of the bumps associated itching and duration of the infec ...
... small bumps that go away without ever being noticed. Molluscum does not affect internal organs, even in people with very low immunity. Like many other viral infections, molluscum always resolves without treatment. However, the number and size of the bumps associated itching and duration of the infec ...
6 Hemorrhagic Fever Viruses as Biological Weapons
... aerosol dissemination in the case of Omsk Hemorrhagic Fever and Kyasanur Forest Disease viruses. Among the Bunyaviridae, we have also elected to forgo discussion of some members. In particular, members of the Hantavirus genus will not be covered since most of the hantaviruses are very difficult to gr ...
... aerosol dissemination in the case of Omsk Hemorrhagic Fever and Kyasanur Forest Disease viruses. Among the Bunyaviridae, we have also elected to forgo discussion of some members. In particular, members of the Hantavirus genus will not be covered since most of the hantaviruses are very difficult to gr ...
2006 multi-state occurrence of eva - National Institute for Animal
... hampered efforts to define more accurately the extent of spread of the infection in certain states. The situation was further complicated by the fact that in some states, owners were not required to share test results for EAV infection on their animals with federal or state animal health authorities ...
... hampered efforts to define more accurately the extent of spread of the infection in certain states. The situation was further complicated by the fact that in some states, owners were not required to share test results for EAV infection on their animals with federal or state animal health authorities ...
13 Chapter 39 Influenza
... dramatic changesVirus strains are drastically antigenically different from previous strains, importantly hemagglutininNew virus comes from genetic re-assortmentOccurs when two different viruses infect a cell at the same timeGenetic mixing results in new virus that is often more virulent ...
... dramatic changesVirus strains are drastically antigenically different from previous strains, importantly hemagglutininNew virus comes from genetic re-assortmentOccurs when two different viruses infect a cell at the same timeGenetic mixing results in new virus that is often more virulent ...
BIOL 191 Introductory Microbiology
... 1. Chap. 8 pp. 211-212, Fig. 8.2 p. 213 The Flow of Genetic Information ii. Clinical Focus pp. 370-371 Influenza Virus A iii. What types of nucleic acids may viruses have? See Table 13.2 p. 375-376 b. Capsid and Envelope i. Spikes 1. H (Hemagglutinin) proteins1 2. N (Neuraminidase) proteins2 1 Hemag ...
... 1. Chap. 8 pp. 211-212, Fig. 8.2 p. 213 The Flow of Genetic Information ii. Clinical Focus pp. 370-371 Influenza Virus A iii. What types of nucleic acids may viruses have? See Table 13.2 p. 375-376 b. Capsid and Envelope i. Spikes 1. H (Hemagglutinin) proteins1 2. N (Neuraminidase) proteins2 1 Hemag ...
Taura syndrome
Taura syndrome is one of the more devastating diseases affecting the shrimp farming industry worldwide.Taura syndrome (TS) was first described in Ecuador during the summer of 1992. In March 1993, it returned as a major epidemic and was the object of extensive media coverage. Retrospective studies have suggested a case of Taura syndrome might have occurred on a shrimp farm in Colombia as early as 1990 and the virus was already present in Ecuador in mid-1991. Between 1992 and 1997, the disease spread to all major regions of the Americas where whiteleg shrimp (Litopenaeus vannamei) is cultured. The economic impact of TS in the Americas during that period might have exceeded US$ 2 billion by some estimates.