Introduction to Staphylococcus aureus: Biochemical Properties of Staphylococcus aureus: Virulence Factors of S. aureus: Surface Proteins and Adhesins S. aureus produces several surface proteins such as fibrin-binding proteins that facilitate attachment to tissues and blood clots. Some strains that cause osteomyelitis and septic arthritis also possess collagen-binding adhesins. Additionally, teichoic acids—composed of ribitol-5-phosphate polymers—play a […]

Overview of Ebola Virus Disease: The Ebola virus causes an acute, serious illness which is often fatal if untreated. The latest outbreak that occurred in West Africa, (first cases notified in March 2014) is the largest and most complex Ebola outbreak since the Ebola virus was first discovered in 1976. The virus enters the human

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

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

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

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: