Vector-Borne Disease Spread: How Insects Transmit Deadly Pathogens
Vector-borne disease spread transmits pathogens through mosquitoes, ticks, and sandflies, causing 700,000+ deaths yearly. Learn how these diseases work and why they are expanding.
Medicine and Health Sciences
15 glossary terms
Medicine and health sciences translate biological knowledge into questions about the human body: how it works, what goes wrong, and what can be done about it. The terms in this section cover disease mechanisms, diagnostic tools, and the research methods that turn basic findings into treatments. Some definitions are old and settled; others describe ideas still moving from the lab into clinical use. Together they give you the footing to read a medical paper critically, follow a drug approval announcement, or understand why a particular virus or condition matters beyond the headlines.
Vaccinia Virus: From Smallpox Vaccine to Cancer Therapy
Vaccinia virus is a large DNA virus in the Orthopoxvirus genus that served as the smallpox vaccine's active component and now works as a vector in cancer therapy and gene research.
Yellow Fever Virus: The Pathogen That Built Modern Public Health
Yellow fever virus is a mosquito-borne RNA pathogen in the family Flaviviridae that causes severe liver damage and death.
Neuroplasticity: How the Brain Rewires Itself
Neuroplasticity is the nervous system's ability to reorganize its structure and connections in response to experience, injury, or changing demands, enabling learning and recovery throughout life.
Sickle Cell Trait Evolution: How One Mutation Defends Against Malaria
Sickle cell trait evolution is the persistence of a hemoglobin mutation in human populations because carriers gain partial protection against malaria, the deadliest infectious disease in history.
Immunotherapy: How the Immune System Fights Cancer
Immunotherapy is a form of cancer treatment that trains the body's immune system to identify and destroy tumor cells.
Retrovirus Replication Cycle: How RNA Viruses Hijack Cells
The retrovirus replication cycle converts viral RNA to DNA and integrates it into a host cell's genome to produce new virus particles.
Somatic Cell Nuclear Transfer: Cloning Technique Explained
Somatic cell nuclear transfer creates an embryo by moving a body cell's nucleus into an egg cell stripped of its own DNA, enabling mammalian cloning and stem cell research.
Zoonotic Disease Transmission
Zoonotic disease transmission is a critical public health concern, as it involves infectious diseases that can be transferred from animals to humans, often leading to significant health challenges and emerging infectious diseases.
Viral Vector Gene Therapy
Viral vector gene therapy represents a cutting-edge approach in medical science, utilizing engineered viruses to introduce therapeutic genes into a patient's cells to correct or mitigate genetic diseases.