Pandemic: Definition, Spread, Examples, and Prevention
Learn what a pandemic is, how it differs from an epidemic, how pandemics emerge and spread, major historical examples, and how future risk is reduced.
Medical microbiology notes covering human pathogens, host–microbe interactions, pathogenesis, transmission, diagnosis, antimicrobial therapy, prevention, and medically important bacteria, viruses, fungi, and parasites.
Learn what a pandemic is, how it differs from an epidemic, how pandemics emerge and spread, major historical examples, and how future risk is reduced.
An epidemic is a rise in disease cases above expected levels in a population. Learn its causes, types, examples, and differences from endemic and pandemic.
Endemic means regularly present in a particular place or population. See disease examples, its biology meaning, and how it differs from epidemic and pandemic.
Submandibular gland is the second largest paired salivary gland of human body. It is about walnut size and its weight is about 7 to 15 gram. It is present in the submandibular triangle of neck, just below the lower border of mandible.
Digastric muscle is a small suprahyoid muscle present in the neck below the lower jaw. It is an important muscle because it helps in movement of mandible, hyoid bone and larynx. The name digastric means “two bellies”. So this muscle has two parts, anterior belly and posterior belly. These two bellies are joined in the
Antiviral drugs are the antimicrobial drugs which are used to treat viral infections. These drugs are specially designed against the virus and its replication process. Some antiviral drugs act against one specific virus, while some drugs may act against many viral agents. Antiviral drugs do not usually destroy the virus directly. They mainly inhibit the
Nosocomial infection is an infection acquired from hospital or health care centre. It occurs during treatment of a patient. It is also called hospital-acquired infection or healthcare-associated infection (HAI). The word nosocomial is derived from Greek word nosokomeion. It means hospital. This term is used when the infection was not present in the patient before
ELISA (Enzyme-Linked Immunosorbent Assay) is a sensitive laboratory test used for detection of antigen, antibody, protein, peptide and hormone from biological samples. It is based on the specific binding between antigen and antibody. So the particular substance present in the sample can be detected by this reaction. In this test, the sample or target molecule
Nervous system is a complex controlling and coordinating system of the body. It receives stimulus, processes the informations and gives response through muscles and glands. Human nervous system is a highly complex biological network of the human body. It is responsible for coordinating body functions, receiving sensory informations and producing different body responses. It has
Bone marrow is a soft, spongy and gelatinous tissue present inside the hollow cavity of bones. It is mainly concerned with formation of blood cells. This process is called haematopoiesis. Bone marrow is a soft, spongy and gelatinous tissue inside the hollow spaces of some bones. It is present in hip bone, thigh bone, vertebrae,