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Poliovirus: Structure, Replication, Pathogenesis, Clinical Features, and Prevention
Introduction to Poliovirus: According to Baltimore’s viral categorization system, picornaviruses are categorized as group IV viruses since their genomes are single-stranded and positive sense RNA. Picornaviruses are small, non-enveloped, icosahedral viruses, which contain a single-stranded, non-segmented RNA genome. The viral particle is around 27–30 nm in diameter. The Picornaviridae family includes medically important genera like…
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Carbohydrate, Protein, and Lipid Digestion, Absorption, and Transport: Enzymatic Mechanisms and Nutrient Metabolism
Carbohydrate digestion, absorption and transport: Protein digestion, absorption and transport: Lipid digestion, absorption and transport:
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Digestive System: Structure, Functions, and Parts of the Alimentary Canal
Introduction to the Digestive System: The digestive tract and auxiliary digestive organs make up the digestive system. Digestive tract is also called as gastro-intestinal tract or alimentary canal. It is tubular structure that includes following parts. Parts of the Alimentary Canal: Mouth: Pharynx and Oesophagus: Pharynx is a common passage for digestive and respiratory tract.…
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Varicella (Chickenpox) and Herpes Zoster (Shingles): Causes, Pathogenesis, Symptoms, Treatment, and Prevention
Introduction to Varicella (Chickenpox): Varicella (Chickenpox) is a common and easily spread illness, especially among young children. It typically presents with a widespread rash of fluid-filled blisters affecting both the skin and mucous membranes. Most often seen in kids under the age of 10, this viral infection is known for its rapid transmission and frequent…
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Herpes Simplex Viruses (HSV): Types, Pathogenesis, Clinical Manifestations, and Antiviral Treatments
Introduction to Herpes Simplex Viruses (HSV): Herpes simplex viruses (HSV) are extremely widespread in human population. They can multiply in a wide variety of cells and infect a wide range of animals, demonstrating their wide host range.Gingivostomatitis, keratoconjunctivitis, encephalitis, genital disease, and infections in neonates are among the many illnesses caused by the herpes simplex…
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Human Herpesviruses: Classification, Replication Cycle, and Clinical Significance
Introduction to Herpesviruses: The herpesvirus family contains several of the most important human pathogens. Clinically, the herpesviruses exhibit a spectrum of diseases. The herpesviruses that commonly infect humans include herpes simplex virus types 1 and 2, varicella-zoster virus, cytomegalovirus, Epstein-Barr virus, herpesviruses 6 and 7, and herpesvirus 8 (Kaposi’s sarcoma-associated herpesvirus). Classification of Human Herpesviruses:…