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Hace 2 días · The human immunodeficiency viruses ( HIV) are two species of Lentivirus (a subgroup of retrovirus) that infect humans. Over time, they cause acquired immunodeficiency syndrome (AIDS), [1] [2] a condition in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive. [3] .
- List of virus species
This is a list of all virus species, including satellites...
- List of virus species
Hace 2 días · Influenza, commonly known as " the flu " or just " flu ", is an infectious disease caused by influenza viruses. Symptoms range from mild to severe and often include fever, runny nose, sore throat, muscle pain, headache, coughing, and fatigue.
23 de may. de 2024 · updated: May 17, 2024. Definición. Un virus es un microorganismo infeccioso que consta de un segmento de ácido nucleico (ADN o ARN) rodeado por una cubierta proteica. Un virus no puede replicarse solo; por el contrario, debe infectar a las células y usar componentes de la célula huésped para fabricar copias de sí mismo.
21 de may. de 2024 · Poliomielitis. Aplicación de la vacuna (oral) contra la poliomielitis en un centro de salud de Bonn, Alemania Occidental (1967). La poliomielitis es una enfermedad viral causada por el poliovirus, 19 que afecta mayoritariamente a los menores de cinco años de edad.
Hace 2 días · Respiratory syncytial virus (RSV), also called human respiratory syncytial virus (hRSV) and human orthopneumovirus, is a contagious virus that causes infections of the respiratory tract. It is a negative-sense, single-stranded RNA virus. Its name is derived from the large cells known as syncytia that form when infected cells fuse.
Hace 5 días · Frequency. 20 million per year [3] Deaths. 140,000+ (2018) [9] [10] Measles is a highly contagious, vaccine-preventable infectious disease caused by measles virus. [3] [5] [11] [12] [13] Symptoms usually develop 10–12 days after exposure to an infected person and last 7–10 days.
