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Communicable Diseases

Andes Virus Transmission, Prevention and Treatment Guide

Andes virus spreads mainly through close, prolonged contact with an infected person, not through casual, brief contact. It is the only hantavirus known to have documented person-to-person transmission. Key Takeaways: Andes Virus Quick Guide Person-to-Person Transmission Mechanisms Transmission happens from infected humans, usually during the symptomatic phase, particularly in the prodromal or early clinical stage […]

Communicable Diseases

7 Critical Hantavirus Facts

Hantavirus is a rodent-borne viral disease that can cause severe respiratory and kidney-related illness in humans. This article explores its ancient history, transmission, symptoms, prevention, and global public health importance.

Public Health & Epidemics

HIV Virus Life Cycle: 5 Critical Facts on ART & Resistance

The HIV Virus Life Cycle involves distinct stages—from cellular binding and integration to replication and maturation. Modern Antiretroviral Therapy (ART) is strategically designed to target these specific viral mechanisms, helping suppress replication and overcome the evolutionary challenges of HIV drug resistance. The HIV life cycle describes how the virus infects CD4 immune cells, replicates using […]

Public Health & Epidemics

7 Important Structural Differences Between HIV-1 and HIV-2

7 Important Structural Differences Between HIV-1 and HIV-2 HIV-1 and HIV-2 are both retroviruses from the lentivirus genus, sharing a similar overall architecture as enveloped, single-stranded RNA viruses but exhibiting key structural differences at genetic, protein, and particle levels; in pathogenicity; transmissibility; and clinical outcomes. HIV-1 is more virulent and globally dominant, while HIV-2 is […]

Public Health & Epidemics

Structure Of HIV: 5 Critical Facts on Viral Anatomy

The HIV virus has a spherical structure about 100 to 120 nm in diameter, featuring a lipid envelope, protein matrix, conical capsid, and internal RNA genome with enzymes. Outer Envelope The envelope derives from the host cell membrane and contains glycoprotein spikes: gp120 (surface unit for host cell attachment) and gp41 (transmembrane unit for fusion). […]

Public Health & Epidemics

HIV and AIDS: 7 Powerful and Important Differences You Must Know

HIV is a virus that infects and progressively weakens the immune system by targeting CD4 cells, while AIDS is the advanced stage of HIV infection when the immune system is severely damaged. Differences Between HIV and AIDS Aspect HIV AIDS Nature Virus (human immunodeficiency virus) that spreads via bodily fluids Syndrome (Acquired Immunodeficiency Syndrome), a […]

Public Health & Epidemics

Human Immunodeficiency Virus (HIV)

Human Immunodeficiency Virus (HIV) is a retrovirus that attacks the immune system, specifically targeting CD4 cells, which weakens the body’s ability to fight infections. Key Takeaways: Understanding HIV & Prevention What Is Human Immunodeficiency Virus (HIV)? Human Immunodeficiency Virus (HIV) causes progressive immune deficiency, potentially leading to Acquired Immunodeficiency Syndrome (AIDS) if untreated. AIDS represents […]

Public Health & Epidemics

HIV Treatment Adherence in India: 5 Critical Challenges

Challenges to HIV treatment adherence in India stem from socioeconomic, behavioral, and systemic factors, despite free ART availability through NACO programs. Adherence rates hover around 70%, below the 95% needed for optimal viral suppression. Socioeconomic Barriers Financial issues like travel costs, unemployment, debt, and economic dependency often lead to missed doses or clinic visits, even […]

Communicable Diseases

Hepatitis B Virus: 5 Critical Structural Components

The hepatitis B virus (HBV) has a relatively simple but highly organized structure centered around a small DNA-containing core wrapped in an envelope. Overall Particle Forms Dane Particle (42 nm) Dane particle (42 nm): The complete, infectious virion is about 42 nm in diameter, with an outer lipid envelope and an inner icosahedral nucleocapsid. Subviral […]

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