Picornaviruses are a diverse family of viruses that includes poliovirus, rhinovirus, enterovirus, and others. They have a positive-sense RNA genome surrounded by an icosahedral capsid. The genome encodes a single polyprotein that is cleaved into structural and non-structural proteins. Replication is rapid, shutting down host cell protein synthesis. Transmission is usually fecal-oral or respiratory. Infections can cause a variety of illnesses depending on the virus, including poliomyelitis, hand foot and mouth disease, myocarditis, and the common cold. Diagnosis involves cell culture or PCR detection of the virus. Treatment is supportive and prevention includes vaccines for polio
Poxviruses are brick or oval-shaped viruses with large double-stranded DNA genomes. Poxviruses exist throughout the world and cause disease in humans and many other types of animals. Poxvirus infections typically result in the formation of lesions, skin nodules, or disseminated rash.
Poxviruses are brick or oval-shaped viruses with large double-stranded DNA genomes. Poxviruses exist throughout the world and cause disease in humans and many other types of animals. Poxvirus infections typically result in the formation of lesions, skin nodules, or disseminated rash.
A picornavirus is a virus belonging to the family Picornaviridae, a family of viruses in the order Picornavirales. Vertebrates, including humans, serve as natural hosts. Picornaviruses are nonenveloped viruses that represent a large family of small, cytoplasmic, plus-strand RNA viruses with a 30-nm icosahedral capsid.
The Paramyxoviridae is a family of single-stranded RNA viruses known to cause different types of infections in vertebrates. Examples of these infections in humans include the measles virus, mumps virus, parainfluenza virus, and respiratory syncytial virus (RSV).
This presentation contains 53 power point slides. These slides have description between virus and host cell interactions including concept of permissive and non-permissive infection, latent infection and host immune response to viral infection. Slides are designed for medical students, nurses, academicians who are teaching virology and microbiology in medical universities, schools or college.
Largest viruses that infect vertebrates
Can be seen under light microscope
Poxvirus diseases are characterized by skin lesions – localized or generalized
Important diseases caused by poxviruses are-
Smallpox
Monkeypox
Cowpox
Tanapox
Molluscum contagiosum
Obligate intracellular, unable to self-replicate.
Once inside living cells, viruses induce the host cell to synthesize virus particles.
The genome is either DNA or RNA (single or double stranded).
Viruses do not have a system to produce ATP.
Viruses range in size from 25 to 270 nm.
Viral tropism!!
The classification of viruses is based on nucleic acid type, size and shape of virion, and presence or absence of an envelope.
Viral Structure
I . Virion is the entire viral particle.
2. Capsid is the protein coat that encloses the genetic material.
3. Capsomer is the protein subunit that makes up the capsid.
4. Nucleocapsid is composed of the capsid and genetic material.
5. The envelope is the outer coating composed of a phospholipid bilayer, which is composed of viral-encoded glycoproteins and sometimes viral encoded matrix proteins. The envelope is derived from a host cell's membrane.
Some viruses use the plasma membrane, whereas others use endoplasmic reticulum, Golgi, or nuclear membranes. Naked nucleocapsids are viruses with no envelopes.
A picornavirus is a virus belonging to the family Picornaviridae, a family of viruses in the order Picornavirales. Vertebrates, including humans, serve as natural hosts. Picornaviruses are nonenveloped viruses that represent a large family of small, cytoplasmic, plus-strand RNA viruses with a 30-nm icosahedral capsid.
The Paramyxoviridae is a family of single-stranded RNA viruses known to cause different types of infections in vertebrates. Examples of these infections in humans include the measles virus, mumps virus, parainfluenza virus, and respiratory syncytial virus (RSV).
This presentation contains 53 power point slides. These slides have description between virus and host cell interactions including concept of permissive and non-permissive infection, latent infection and host immune response to viral infection. Slides are designed for medical students, nurses, academicians who are teaching virology and microbiology in medical universities, schools or college.
Largest viruses that infect vertebrates
Can be seen under light microscope
Poxvirus diseases are characterized by skin lesions – localized or generalized
Important diseases caused by poxviruses are-
Smallpox
Monkeypox
Cowpox
Tanapox
Molluscum contagiosum
Obligate intracellular, unable to self-replicate.
Once inside living cells, viruses induce the host cell to synthesize virus particles.
The genome is either DNA or RNA (single or double stranded).
Viruses do not have a system to produce ATP.
Viruses range in size from 25 to 270 nm.
Viral tropism!!
The classification of viruses is based on nucleic acid type, size and shape of virion, and presence or absence of an envelope.
Viral Structure
I . Virion is the entire viral particle.
2. Capsid is the protein coat that encloses the genetic material.
3. Capsomer is the protein subunit that makes up the capsid.
4. Nucleocapsid is composed of the capsid and genetic material.
5. The envelope is the outer coating composed of a phospholipid bilayer, which is composed of viral-encoded glycoproteins and sometimes viral encoded matrix proteins. The envelope is derived from a host cell's membrane.
Some viruses use the plasma membrane, whereas others use endoplasmic reticulum, Golgi, or nuclear membranes. Naked nucleocapsids are viruses with no envelopes.
Dear Doctor,
Its humbling that you liked the presentation and would like to use it for your purpose. Kindly find your requested presentation attached with this email.
The shortlink for your future reference is http://go.drankush.com/PolioFinal
We would always appreciate if you would place this reference as a due credit in your work and while sharing for others use.
Ankush, Amroskar S, Bhamaikar V, Barreto J. "Polio Final Presentation" Accessed from http://go.drankush.com/PolioFinal
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As we near eradication of this dreaded disease - "POLIO", we would like to share the following presentation we made for our Pediatrics seminar in 2012.
Best attempts have been made to cover most of the topic, keeping the size under 100 slides.
Hope you like it.
Ankush
Shahin Amroskar
Varsha Bhamaikar
Joyce Barreto
Coronaviruses are a family of viruses that cause disease in animals. Seven, including the new virus, have made the jump to humans, but most just cause cold-like symptoms.
Two other coronaviruses – Middle East respiratory syndrome (Mers) and severe acute respiratory syndrome (Sars) – are much more severe,
updated info from reliable source .
it helps in understanding complications due to covid . it is handy for interns and postgraduates to act when cases come ,
"Unveiling Malaria: Understanding, Prevention, and Treatment"MMariSelvam4
"Malaria: A Persistent Global Health Challenge"
Malaria, a mosquito-borne disease caused by the Plasmodium parasite, continues to be a major public health concern worldwide. This presentation sheds light on the multifaceted nature of malaria, addressing its prevalence, transmission, impact on global health, and ongoing efforts towards prevention and treatment.
Despite significant progress in recent years, malaria remains prevalent in many parts of the world, especially in sub-Saharan Africa, where it disproportionately affects vulnerable populations such as children and pregnant women. The disease is transmitted through the bite of infected Anopheles mosquitoes, making vector control a crucial aspect of malaria prevention.
Efforts to combat malaria encompass a range of strategies, including the distribution of insecticide-treated bed nets, indoor residual spraying, and the development of effective antimalarial drugs. Additionally, ongoing research focuses on innovative approaches such as genetic modification of mosquitoes and the development of vaccines to further advance malaria control efforts.
The burden of malaria extends beyond its immediate health impact, affecting socioeconomic development in endemic regions and exacerbating health disparities. Achieving malaria eradication requires a concerted effort involving governments, international organizations, healthcare providers, researchers, and communities.
By raising awareness, advocating for increased funding and resources, and implementing evidence-based interventions, we can work towards the ultimate goal of eradicating malaria and ensuring health equity for all. Together, we can make significant strides in reducing the global burden of this preventable and treatable disease.
4. Classification + sense RNA viruses Porcine teschovirus Teschovirus Aichivirus Kobuvirus Equine rhinitis B virus Erbovirus Human parechovirus Parechovirus Hand foot and mouth virus O Aphtovirus Encephalomyocarditis virus Cardiovirus Human Rhinovirus Rhinovirus Hepatitis A Hepatoviruses Poliovirus, Enterovirus, Coxsackie,Echovirus Enteroviruses Picornaviridae Species Genus Family
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