THE ISOLATION AND IDENTIFICATION OF INFECTIOUS BOVINE
... solution to monolayers of cell cultures and growing the obtained cell suspension in the culture growth medium. Experimental transmission. - A 2 year-old native cow was used in the exposure trial. The animal was inoculated intranasally (2 ml of virus fluid per nostril) and intraconjunctivally (0.5 ml ...
... solution to monolayers of cell cultures and growing the obtained cell suspension in the culture growth medium. Experimental transmission. - A 2 year-old native cow was used in the exposure trial. The animal was inoculated intranasally (2 ml of virus fluid per nostril) and intraconjunctivally (0.5 ml ...
From obscurity, to emergency, to enduring public health threat
... was first detected in humans five years later. It wasn’t until 1964 that scientists confirmed the virus caused illness in humans, with a painless rash its most outstanding symptom. The virus continued to appear in sporadic human cases across tropical sub-Saharan Africa and then in tropical Asia, cau ...
... was first detected in humans five years later. It wasn’t until 1964 that scientists confirmed the virus caused illness in humans, with a painless rash its most outstanding symptom. The virus continued to appear in sporadic human cases across tropical sub-Saharan Africa and then in tropical Asia, cau ...
PowerPoint 演示文稿
... Decreases for six months Plateaus and persists for several years Antigenic Shift involving entire viral single-stranded RNA's incorporation and increase in infectivity of newly arising influenza strain. Antigenic Drift involves point mutations in Hemagglutinin or Neuraminidase allowing for viral esc ...
... Decreases for six months Plateaus and persists for several years Antigenic Shift involving entire viral single-stranded RNA's incorporation and increase in infectivity of newly arising influenza strain. Antigenic Drift involves point mutations in Hemagglutinin or Neuraminidase allowing for viral esc ...
Foodborne illness - Intersection between Clinical and Public Health
... bacillary dysentery have demonstrated most markedly decrease in the previous decade. There were about 100 cases annually each (please refer to the left axis of Figure 2). Similarly, typhoid fever and cholera are on declining trends with 36 to 53 cases of typhoid fever and 1 to 7 cases of cholera eac ...
... bacillary dysentery have demonstrated most markedly decrease in the previous decade. There were about 100 cases annually each (please refer to the left axis of Figure 2). Similarly, typhoid fever and cholera are on declining trends with 36 to 53 cases of typhoid fever and 1 to 7 cases of cholera eac ...
What are Viruses? - s3.amazonaws.com
... alternate configuration by contact with other prion proteins They have no DNA or RNA The main protein involved in human and mammalian prion diseases is called “PrP” ...
... alternate configuration by contact with other prion proteins They have no DNA or RNA The main protein involved in human and mammalian prion diseases is called “PrP” ...
VIRAL INFECTIONS
... Infection is endemic in developing countries and there are winter epidemics in developed countries. These viruses are easily transmitted and resist alcohol denaturation; person-to-person spread, especially by health-care workers in hospitals, is well documented. The virus infects enterocytes, causin ...
... Infection is endemic in developing countries and there are winter epidemics in developed countries. These viruses are easily transmitted and resist alcohol denaturation; person-to-person spread, especially by health-care workers in hospitals, is well documented. The virus infects enterocytes, causin ...
Measles
... • Only Parvovirus pathogenic in humans • Composed of an icosahedral protein capsid without an envelope that contains singlestranded DNA • It is relatively heat- and solvent-resistant. • Replicate in mitotically-active cells – require host cell factors present in late S phase to replicate ...
... • Only Parvovirus pathogenic in humans • Composed of an icosahedral protein capsid without an envelope that contains singlestranded DNA • It is relatively heat- and solvent-resistant. • Replicate in mitotically-active cells – require host cell factors present in late S phase to replicate ...
PowerPoint 演示文稿 - Syracuse University
... Decreases for six months Plateaus and persists for several years Antigenic Shift involving entire viral single-stranded RNA's incorporation and increase in infectivity of newly arising influenza strain. Antigenic Drift involves point mutations in Hemagglutinin or Neuraminidase allowing for viral esc ...
... Decreases for six months Plateaus and persists for several years Antigenic Shift involving entire viral single-stranded RNA's incorporation and increase in infectivity of newly arising influenza strain. Antigenic Drift involves point mutations in Hemagglutinin or Neuraminidase allowing for viral esc ...
Prokaryotes and Viruses
... West Nile Virus Symptoms Majority of people that become infected with the West Nile virus have no illness or experience only a mild flu-like illness May include fever, headache and body aches lasting only a few days Some persons may also have a mild rash or swollen lymph glands Less than one ...
... West Nile Virus Symptoms Majority of people that become infected with the West Nile virus have no illness or experience only a mild flu-like illness May include fever, headache and body aches lasting only a few days Some persons may also have a mild rash or swollen lymph glands Less than one ...
VIRUSES AND KOCH`S POSTULATES1 Diseases at
... to rabbits. My experimental animals were already carrying an agent capable of inducing lesions similar to those seen in varicella; the virus was activated by the experimental procedures. Another example of the necessity of proving that a virus comes from a certain source is that encountered in our r ...
... to rabbits. My experimental animals were already carrying an agent capable of inducing lesions similar to those seen in varicella; the virus was activated by the experimental procedures. Another example of the necessity of proving that a virus comes from a certain source is that encountered in our r ...
General Steps in Viral Replication Cycles
... coat proteins assemble together to form the capsid, which encases and stabilizes the viral nucleic acid against the extracellular environment and facilitates the attachment and penetration by the virus upon contact with new susceptible cells. The virus infection may have little or no effect on the h ...
... coat proteins assemble together to form the capsid, which encases and stabilizes the viral nucleic acid against the extracellular environment and facilitates the attachment and penetration by the virus upon contact with new susceptible cells. The virus infection may have little or no effect on the h ...
Persistent Infections
... Which are shared features of persistent infections with polyomavirus, HBV, and HCV? ...
... Which are shared features of persistent infections with polyomavirus, HBV, and HCV? ...
Infective material, concepts and procedures for intentional sow herd
... Ongoing disease protection in suckling piglets depends on two major factors: 1. the continuous flow of IgA-laden milk through the piglet intestine, and 2. the absence of infective doses of PEDv in environs. These are the basis for two key action items after whole-herd exposure is complete. Firstly, ...
... Ongoing disease protection in suckling piglets depends on two major factors: 1. the continuous flow of IgA-laden milk through the piglet intestine, and 2. the absence of infective doses of PEDv in environs. These are the basis for two key action items after whole-herd exposure is complete. Firstly, ...
Viral Replication - BMC Dentists 2011
... infections in developing countries. • The very young and the very old have more severe viral infections. ...
... infections in developing countries. • The very young and the very old have more severe viral infections. ...
KOZLENKO T
... Gillespie J. H. (1973) reported that the buffer pH affects the stability of the virus. Most CVC isolates are resistant to pH 4, but at pH 3 and lower virus titer decreases [2, 5, 9]. Doultree J. C., Druce J. D. et al (1999), studying resistance of Norwalk virus to desinfectant, used as a model felin ...
... Gillespie J. H. (1973) reported that the buffer pH affects the stability of the virus. Most CVC isolates are resistant to pH 4, but at pH 3 and lower virus titer decreases [2, 5, 9]. Doultree J. C., Druce J. D. et al (1999), studying resistance of Norwalk virus to desinfectant, used as a model felin ...
NIH Biosketch
... immunological studies of respiratory syncytial virus (RSV), which like Ebola and Marburg filoviruses is a nonsegmented negative strand virus. At LID, I also worked on the development of vectored vaccines against emerging and respiratory viruses, including RSV, human parainfluenza virus type 3 (HPIV3 ...
... immunological studies of respiratory syncytial virus (RSV), which like Ebola and Marburg filoviruses is a nonsegmented negative strand virus. At LID, I also worked on the development of vectored vaccines against emerging and respiratory viruses, including RSV, human parainfluenza virus type 3 (HPIV3 ...
Molecular Characterization of Thymidine Kinase and Glycoprotein G
... threonine at position 252 with ILTV strains either of high virulence, such as strain 632 from the United States (Keeler et al., 1991), or Korean low-virulence field isolates (Han and Kim, 2001). The discrimination of vaccine and field ILT viruses based on sequencing of UL47 and gG genes could serve ...
... threonine at position 252 with ILTV strains either of high virulence, such as strain 632 from the United States (Keeler et al., 1991), or Korean low-virulence field isolates (Han and Kim, 2001). The discrimination of vaccine and field ILT viruses based on sequencing of UL47 and gG genes could serve ...
Infectious Disease
... a) Pap smear for cervical cancer b) chemoprophylaxis in a recent TB converter c) proctoscopy for rectal cancer d) immunization for Haemophilus influenzae B e) mammography for breast cancer ...
... a) Pap smear for cervical cancer b) chemoprophylaxis in a recent TB converter c) proctoscopy for rectal cancer d) immunization for Haemophilus influenzae B e) mammography for breast cancer ...
Genotypic characterization of infectious bronchitis viruses from India
... quality, kidney damage, enteritis and even pectoral myopathy have also been observed1. IB is of economic importance because it causes decrease in weight gain, feed efficiency, egg production and quality2. It is caused by a virus belonging to the genus Coronavirus of the Family Coronaviridae. IB viru ...
... quality, kidney damage, enteritis and even pectoral myopathy have also been observed1. IB is of economic importance because it causes decrease in weight gain, feed efficiency, egg production and quality2. It is caused by a virus belonging to the genus Coronavirus of the Family Coronaviridae. IB viru ...
Interventions for Clients with Infectious Problems of the Respiratory
... • Drug resistance is a problem, especially among older people. • Interventions for aspiration pneumonia aimed at preventing lung damage and treating infection. ...
... • Drug resistance is a problem, especially among older people. • Interventions for aspiration pneumonia aimed at preventing lung damage and treating infection. ...
Miscellaneous Arboviruses
... blood safety: Absent in nonendemic areas including the US and Canada Public concern regarding disease agent: Absent in nonendemic areas; high in endemic areas and during ...
... blood safety: Absent in nonendemic areas including the US and Canada Public concern regarding disease agent: Absent in nonendemic areas; high in endemic areas and during ...
Introduction to Environmentally Transmitted Pathogens
... • Vehicles: inanimate objects/materials by which organisms get from one host to another; includes water, food, objects (called fomites) and biological products (e.g., blood). • Amplifiers: Types of reservoirs where organisms proliferate; often applied to organisms transmitted by the airborne route. ...
... • Vehicles: inanimate objects/materials by which organisms get from one host to another; includes water, food, objects (called fomites) and biological products (e.g., blood). • Amplifiers: Types of reservoirs where organisms proliferate; often applied to organisms transmitted by the airborne route. ...
9&10 Viral infection..
... development of localized vesicular rash, vesicles ruptures to form ulcers. Herpetic lesions appear on the external genitalia of males and females. Lesions also appear inside vagina, urethra and cervix. After resolution of primary infection, the virus travels from the genitalia via neurons to the sac ...
... development of localized vesicular rash, vesicles ruptures to form ulcers. Herpetic lesions appear on the external genitalia of males and females. Lesions also appear inside vagina, urethra and cervix. After resolution of primary infection, the virus travels from the genitalia via neurons to the sac ...
Norovirus
Norovirus, sometimes known as the winter vomiting bug in the UK, is the most common cause of viral gastroenteritis in humans. It affects people of all ages. The virus is transmitted by fecally contaminated food or water, by person-to-person contact, and via aerosolization of the virus and subsequent contamination of surfaces. The virus affects around 267 million people and causes over 200,000 deaths each year; these deaths are usually in less developed countries and in the very young, elderly and immunosuppressed.Norovirus infection is characterized by nausea, projectile vomiting, malodorous watery diarrhea, abdominal pain, and in some cases, loss of taste. General lethargy, weakness, muscle aches, headache, and low-grade fever may occur. The disease is usually self-limiting, and severe illness is rare. Although having norovirus can be unpleasant, it is not usually dangerous and most who contract it make a full recovery within a couple of days. Norovirus is rapidly inactivated by either sufficient heating or by chlorine-based disinfectants and polyquaternary amines, but the virus is less susceptible to alcohols and detergents.After infection, immunity to norovirus is usually incomplete and temporary, with one publication drawing the conclusion that protective immunity to the same strain of norovirus lasts for six months, but that all such immunity is gone after two years. Outbreaks of norovirus infection often occur in closed or semiclosed communities, such as long-term care facilities, overnight camps, hospitals, schools, prisons, dormitories, and cruise ships, where the infection spreads very rapidly either by person-to-person transmission or through contaminated food. Many norovirus outbreaks have been traced to food that was handled by one infected person.The genus name Norovirus is derived from Norwalk virus, the only species of the genus. The species causes approximately 90% of epidemic nonbacterial outbreaks of gastroenteritis around the world, and may be responsible for 50% of all foodborne outbreaks of gastroenteritis in the United States.