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Introduction to Environmentally Transmitted Pathogens, Part 1
... • Enteric and respiratory viruses: infectious at very low doses – 1 cell culture ID has high probability of infecting an exposed human. – May still need exposure to many virions • Most enteric bacteria: infective at moderate (10s-100s cells) to high (1,000 cells) doses. • Protozoa: can be infective ...
... • Enteric and respiratory viruses: infectious at very low doses – 1 cell culture ID has high probability of infecting an exposed human. – May still need exposure to many virions • Most enteric bacteria: infective at moderate (10s-100s cells) to high (1,000 cells) doses. • Protozoa: can be infective ...
Association of Tonate Virus (Subtype IIIB of the Venezuelan Equine
... Although Tonate virus was first isolated 125 years ago, very little is known about its virulence. This first reported fatal case of encephalitis due to Tonate virus demonstrates that this virus may be neurovirulent and that it should not be considered, as it used to be [3], as being responsible for ...
... Although Tonate virus was first isolated 125 years ago, very little is known about its virulence. This first reported fatal case of encephalitis due to Tonate virus demonstrates that this virus may be neurovirulent and that it should not be considered, as it used to be [3], as being responsible for ...
The molecular basis of herpes simplex virus latency
... 2006). Available evidence is therefore supportive of the view that a major function of ICP0 is to create an environment that is favourable for virus transcription by directing the destruction of cellular repressors. These observations in addition to the ability of ICP0 to derepress tightly silenced ...
... 2006). Available evidence is therefore supportive of the view that a major function of ICP0 is to create an environment that is favourable for virus transcription by directing the destruction of cellular repressors. These observations in addition to the ability of ICP0 to derepress tightly silenced ...
File - OUR SITE
... animals. Many different animals are infected including ducks, chicken, pigs, whales, horses & seals. 2. Animal to human infection: direct contact of humans with infected poultry, its discharges & feces. ...
... animals. Many different animals are infected including ducks, chicken, pigs, whales, horses & seals. 2. Animal to human infection: direct contact of humans with infected poultry, its discharges & feces. ...
Reactivation of Heat Inactivated Reovirus
... MKTC using an overlay of high cystine altered E a g 1 e’s medium 5, containing pancreatin 6 at a dilu tion of 1: 60 7. The plaques were revealed by staining with neutral red after a plaque development time of 6 days. Heat treated virus was also titered using the facilitation pro ced u re3; kaolin w ...
... MKTC using an overlay of high cystine altered E a g 1 e’s medium 5, containing pancreatin 6 at a dilu tion of 1: 60 7. The plaques were revealed by staining with neutral red after a plaque development time of 6 days. Heat treated virus was also titered using the facilitation pro ced u re3; kaolin w ...
West Nile Virus
... -Ability to respond to pH (Conforms shape of envelope in response to pH which causes fusion and the release of genetic info into cytoplasm) Environmental factors that aid in pathogenicity ● Global warming allows perfect conditions for mosquitoes (warm/humid) ● No vaccine for WNV ● arrangement of env ...
... -Ability to respond to pH (Conforms shape of envelope in response to pH which causes fusion and the release of genetic info into cytoplasm) Environmental factors that aid in pathogenicity ● Global warming allows perfect conditions for mosquitoes (warm/humid) ● No vaccine for WNV ● arrangement of env ...
RT Bugs Chart
... -unapparent most of the time Progressive Primary TB: ~5% of primary infections; infection does not resolve and ...
... -unapparent most of the time Progressive Primary TB: ~5% of primary infections; infection does not resolve and ...
MICROORGANISMS
... 1. What are some infectious diseases you already know about and what are their symptoms? 2. What makes these diseases contagious? 3. To help stop or minimize the transmission of infectious diseases, what information do you think would be important to know and what are some precautions that one ...
... 1. What are some infectious diseases you already know about and what are their symptoms? 2. What makes these diseases contagious? 3. To help stop or minimize the transmission of infectious diseases, what information do you think would be important to know and what are some precautions that one ...
Pediatric Infections
... General: disease of infants who are less than 1 month of age, are clinically ill, and have positive blood cultures Early Onset: first week of life (often caused by Group B Streptococci and E.coli) Late Onset: after first week of life (often caused by Coagulase-negative Staph picked up in the NICU) ...
... General: disease of infants who are less than 1 month of age, are clinically ill, and have positive blood cultures Early Onset: first week of life (often caused by Group B Streptococci and E.coli) Late Onset: after first week of life (often caused by Coagulase-negative Staph picked up in the NICU) ...
West Nile virus
... When people become infected with WNV, they are quite often asymptomatic, showing no signs of illness or disease. However, in some individuals an influenza-like illness often follows. In humans, the virus has an incubation period of 3 to 10 days. Therefore, symptoms may appear suddenly and are often ...
... When people become infected with WNV, they are quite often asymptomatic, showing no signs of illness or disease. However, in some individuals an influenza-like illness often follows. In humans, the virus has an incubation period of 3 to 10 days. Therefore, symptoms may appear suddenly and are often ...
Emerging Infectious Diseases with Global Impact
... for the virus is unknown, it is suspected that bats are a carrier and likely reservoir. Within the genus Ebolavirus there are five species, named after the areas the virus was discovered. Bundibugyo ebolavirus, Zaire ebolavirus, Sudan ebolavirus, and Taï Forest ebolavirus infect humans. The fifth, R ...
... for the virus is unknown, it is suspected that bats are a carrier and likely reservoir. Within the genus Ebolavirus there are five species, named after the areas the virus was discovered. Bundibugyo ebolavirus, Zaire ebolavirus, Sudan ebolavirus, and Taï Forest ebolavirus infect humans. The fifth, R ...
Classification Guide for Infectious Substances
... Non-infectious biological materials from humans, animals or plants. Examples include non-infectious cells, tissue cultures, blood or plasma from individuals not suspected of having an infectious disease, DNA, RNA, or other genetic elements Substances containing micro-organisms, which are non-pathoge ...
... Non-infectious biological materials from humans, animals or plants. Examples include non-infectious cells, tissue cultures, blood or plasma from individuals not suspected of having an infectious disease, DNA, RNA, or other genetic elements Substances containing micro-organisms, which are non-pathoge ...
5. Describe assessment, treatment & teaching for STDS
... Diagnosis and Treatment • Dx based on blood confirmation of organism • Treatment of choice Pen G injections • patients allergic to penicillin may be treated with doxycycline 300mg daily for 21 days or oral amoxycillin 3gm twice daily with 1 gm of probenecid for 2 weeks. ...
... Diagnosis and Treatment • Dx based on blood confirmation of organism • Treatment of choice Pen G injections • patients allergic to penicillin may be treated with doxycycline 300mg daily for 21 days or oral amoxycillin 3gm twice daily with 1 gm of probenecid for 2 weeks. ...
Effect of Pinus massoniana Lamb. bark extract on lytic cycle of
... attributed to decrease in live P3HR1 cells. Low concentration of PMBE had less toxic effect on P3HR1 cells. EBV immediate-early proteins like Rta and Zta were necessary for transcription of the EA-D gene, BMRF1. In the present study, inhibitory effect of PMBE on Rta and Zta expression was investigat ...
... attributed to decrease in live P3HR1 cells. Low concentration of PMBE had less toxic effect on P3HR1 cells. EBV immediate-early proteins like Rta and Zta were necessary for transcription of the EA-D gene, BMRF1. In the present study, inhibitory effect of PMBE on Rta and Zta expression was investigat ...
isolation of fowl adenovirus in chicken embryo liver cell culture and
... with 1% Ultra Pure agarose (Invitrogen, USA) and 1 Kbp DNA ladder (Fermentas). Four samples which proved positive for avian adenovirus were used for the preparation of inoculum for propagation of virus in CEL culture. Preparation of chicken embryonic liver cell culture Primary chicken embryo liver ( ...
... with 1% Ultra Pure agarose (Invitrogen, USA) and 1 Kbp DNA ladder (Fermentas). Four samples which proved positive for avian adenovirus were used for the preparation of inoculum for propagation of virus in CEL culture. Preparation of chicken embryonic liver cell culture Primary chicken embryo liver ( ...
Eurosurveillance Weekly, funded by Directorate General V of the
... Lassa fever has been confirmed in a British aid worker based in Daru, in eastern Sierra Leone, who developed a fever and was brought back to England by a Swiss air ambulance. The man, aged 50, became ill with a fever around 21 February and travelled to Freetown for medical care on 1 March. On arriva ...
... Lassa fever has been confirmed in a British aid worker based in Daru, in eastern Sierra Leone, who developed a fever and was brought back to England by a Swiss air ambulance. The man, aged 50, became ill with a fever around 21 February and travelled to Freetown for medical care on 1 March. On arriva ...
Congenital Infections
... • The spectrum of neonatal HSV infection varies from a mild disease localized to the skin to a fatal disseminated infection. • Infection is particularly dangerous in premature infants. • Where dissemination occurs, the organs most commonly involved are the liver, adrenals and the brain. • Where the ...
... • The spectrum of neonatal HSV infection varies from a mild disease localized to the skin to a fatal disseminated infection. • Infection is particularly dangerous in premature infants. • Where dissemination occurs, the organs most commonly involved are the liver, adrenals and the brain. • Where the ...
THE ISOLATION AND IDENTIFICATION OF INFECTIOUS BOVINE
... being studied microscopicalIy for cytologie changes. ...
... being studied microscopicalIy for cytologie changes. ...
Lecture 24
... – Symptoms of the infection are painful urination, genital irritation, and fluidfilled vesicles. – Neonatal herpes is contracted during fetal development or birth. It can result in neurological damage or infant fatalities. • The virus might enter a latent stage in nerve cells. Vesicles reappear foll ...
... – Symptoms of the infection are painful urination, genital irritation, and fluidfilled vesicles. – Neonatal herpes is contracted during fetal development or birth. It can result in neurological damage or infant fatalities. • The virus might enter a latent stage in nerve cells. Vesicles reappear foll ...
Contagion the movie- how real is it?
... Like SARS, the movie’s fictional MEV-1 virus is initially passed on to the public via unsanitary restaurant practices, and like Nipah, the virus enters the food chain when, as the ...
... Like SARS, the movie’s fictional MEV-1 virus is initially passed on to the public via unsanitary restaurant practices, and like Nipah, the virus enters the food chain when, as the ...
Where does H5N1 come from?
... http://www.avma.org/public_health/influenz a/default.asp#avian United States Department of the Interior http://www.nwhc.usgs.gov/research/avian_i nfluenza/avian_influenza.html Office International des Epizooties [World Organization for Animal Health (OIE)] http://www.oie.int/eng/AVIAN_INFLUENZA/h om ...
... http://www.avma.org/public_health/influenz a/default.asp#avian United States Department of the Interior http://www.nwhc.usgs.gov/research/avian_i nfluenza/avian_influenza.html Office International des Epizooties [World Organization for Animal Health (OIE)] http://www.oie.int/eng/AVIAN_INFLUENZA/h om ...
Common Sexually Transmitted Infections (STIs)
... Usually through direct contact with blisters or open sores, but can also be spread when no sores are present. ...
... Usually through direct contact with blisters or open sores, but can also be spread when no sores are present. ...
Bloodborne Pathogens
... recommended for all occupational exposures. 99.7% of the exposures do not lead to HIV infections. • If treatment is recommended it should begin within hours of the exposure. ...
... recommended for all occupational exposures. 99.7% of the exposures do not lead to HIV infections. • If treatment is recommended it should begin within hours of the exposure. ...
Herpes simplex virus
![](https://commons.wikimedia.org/wiki/Special:FilePath/Herpes_simplex_virus_TEM_B82-0474_lores.jpg?width=300)
Herpes simplex virus 1 and 2 (HSV-1 and HSV-2), also known as human herpesvirus 1 and 2 (HHV-1 and HHV-2), are two members of the herpesvirus family, Herpesviridae, that infect humans. Both HSV-1 (which produces most cold sores) and HSV-2 (which produces most genital herpes) are ubiquitous and contagious. They can be spread when an infected person is producing and shedding the virus. Herpes simplex can be spread through contact with saliva, such as sharing drinks.Symptoms of herpes simplex virus infection include watery blisters in the skin or mucous membranes of the mouth, lips or genitals. Lesions heal with a scab characteristic of herpetic disease. Sometimes, the viruses cause very mild or atypical symptoms during outbreaks. However, as neurotropic and neuroinvasive viruses, HSV-1 and -2 persist in the body by becoming latent and hiding from the immune system in the cell bodies of neurons. After the initial or primary infection, some infected people experience sporadic episodes of viral reactivation or outbreaks. In an outbreak, the virus in a nerve cell becomes active and is transported via the neuron's axon to the skin, where virus replication and shedding occur and cause new sores. It is one of the most common sexually transmitted infections.