A virus is a small infectious agent that can replicate only inside the living cells of an organism. Viruses can infect all types of organisms‚ from animals and plants to bacteria and archaea.[1] Since Dmitri Ivanovsky’s 1892 article describing a non-bacterial pathogen infecting tobacco plants‚ and the discovery of the tobacco mosaic virus by Martinus Beijerinck in 1898‚[2] about 5‚000 viruses have been described in detail‚[3] although there are millions of different types.[4] Viruses are found in
Premium Virus Bacteria
Respiratory syncytial virus (RSV) Introduction of the Lungs: The primary role of our respiratory system is the exchange of gases in our blood stream. As we inhale our lungs take in Oxygen (O2)‚ as we exhale our lungs release Carbon Dioxide (CO2). The major parts of the respiratory system consist of; The upper respiratory tract consists of the nose‚ sinuses‚ mouth‚ larynx and throat. The lower respiratory tract consists of trachea‚ bronchial tubes and the lungs. The right lung
Premium
INFORMATIVE SPEECH OUTLINE Healing the Whole World Speech #1: Informative Josephine Harscouet‚ Sheyla Rodriguez‚ Mallory Bridgman Dengue Fever in Colombia and India SPECIFIC PURPOSE: To inform my audience about Dengue Fever INTRODUCTION I. With more than one-third of the world’s population living in areas at risk for infection‚ dengue virus is a leading cause of illness and death in the tropics and subtropics. II. We would like to inform you of this disease because it affects so many populations
Free Dengue fever Mosquito Malaria
Dengue Hemorrhagic Fever (DHF) is a serious‚ life threatening disease that is extremely prevalent throughout south East Asia. DHF has caused widespread epidemics and has claimed many lives. This paper will focus on educating individuals in the medical profession and patients that reside in the regions of Thailand‚ Laos‚ and Vietnam about this disease. DHF is a viral infection spread by the bite of mosquitoes‚ more specifically the female Aedes Mosquito (2). DHF is a virus that belongs to
Premium Dengue fever Malaria Mosquito
Amy Rogers Office Hours: MW 9-10 AM • Viruses are on the border between living & nonliving things • Have either DNA or RNA‚ never both • Often cause death of the host cell • Genus/species names not used in viral classification Compenents of a virus (lipid bilayer) Viral components: Nucleic Acid • Viral genomes can be either DNA or RNA • This genome‚ once inside a host cell‚ directs synthesis of new viral proteins‚ and also replication of new viral genomes • Viral genomes come in all kinds:
Premium Virus DNA
Dengue survival rate dependency on income level‚ awareness‚ access to hospitals . Humans are the major hosts of the dengue virus and Aedes aegypti mosquitoes represent the principal vector .A aegypti is closely associated with human habitation and its larvae are often found in artificial water containers such as discarded tires‚ buckets and water storage facilities. Dengue is a mosquito borne disease that has recently become a public health concern. The WHO has estimated that 40% of the world’s
Premium Mosquito Dengue fever Aedes
Knowledge and Preventive Practices toward Dengue Fever among Dumalag Central National High School Students Ronald Oquendo Jr. Chapter 1 Introduction to the Study Chapter One is divided into five parts: (1) Background and Theoretical Framework of the Study‚ (2) Statement of the Problem and Hypothesis‚ (3) Significance of the Study‚ (4) Definition of Terms‚ and (5) Delimitation of the Study. Part One‚ Background and Theoretical Framework of the Study‚ presents the rationale
Free Dengue fever Mosquito Aedes
INTRODUCTION Dengue Fever is caused by one of the four closely related‚ but antigenically distinct‚ virus serotypes Dengue type 1‚ Dengue type 2‚ Dengue type 3‚ and Dengue type 4 of the genus Flavivirus and Chikungunya virus. Infection with one of these serotype provides immunity to only that serotype of life‚ to a person living in a Dengue-endemic area can have more than one Dengue infection during their lifetime. Dengue fever through the four different Dengue serotypes are maintained in the
Premium Blood Coagulation
Virology Journal Research BioMed Central Open Access Eco-epidemiological analysis of dengue infection during an outbreak of dengue fever‚ India Anita Chakravarti* and Rajni Kumaria Address: Department of Microbiology‚ Maulana Azad Medical College‚ Associated Lok Nayak Hospital‚ Bahadur Shah Zafar Marg New Delhi110002‚ India Email: Anita Chakravarti* - dochak@yahoo.com; Rajni Kumaria - rajnikumaria@yahoo.com * Corresponding author Published: 14 April 2005 Virology Journal 2005‚ 2:32
Free Dengue fever Aedes aegypti Aedes
eat brains...although there are some....later! Another argument is that viruses should not be added to the tree of life...even the big viruses...but then the concept of a tree of life may be outdated as well2‚3. So‚ back to some virology. A virus can not make more of itself‚ or multiply‚ without help from the contents of living cells (lets leave
Premium DNA Organism Gene