Rabies is a viral infection that mainly spreads through a bite from an infected animal it is an rna virus of the rhabdovirus family without early treatment, it is usually fatal. Rabies is a preventable viral disease of mammals most often transmitted through the bite of a rabid animal the vast majority of rabies cases reported to the centers for disease control and prevention (cdc) each year occur in wild animals like raccoons, skunks, bats, and foxes. Viral meningitis is an inflammation of the lining of the brain and spinal cord that causes headache, fever, stiff neck, and other symptoms many viruses can cause viral meningitis, but a group of viruses called enteroviruses are most often to blame. The top 10 deadliest diseases medically reviewed by deborah weatherspoon, phd, rn, for bacterial or viral infections, proper handwashing can help prevent or reduce your risk. Viral diseases can be prevented from spreading by vaccinations and the most successful of these is the small pox vaccine that has completely eradicated the disease in 1980.
Principles of communicable diseases epidemiology carriers it occurs either due to inadequate treatment or immune response, the disease agent is not completely eliminated, leading to a carrier state it is “an infected person or animal that harbors a specific infectious agent in the absence of discernible (visible) clinical disease and serves. Infectious causes of peripheral nervous system (pns) disease are underrecognized but potentially treatable heightened awareness educed by advanced understanding of the presentations and management of these infections can aid diagnosis and facilitate treatment. Start studying chapter 1 history of microbiology learn vocabulary, terms, and more with flashcards, games, and other study tools inserting a gene from the hepatitis b virus into yeast so that the yeast produces a viral protein is an example of a microorganism has the following characteristics: eukaryotic, multicellular, has cell. Pathogenesis pathogenesis is the process by which an infection leads to disease pathogenic mechanisms of viral disease include (1) implantation of virus at the portal of entry, (2) local replication, (3) spread to target organs (disease sites), and (4) spread to.
First studied and described according to their epidemiologic characteristics new infectious diseases can be classified according to their epidemiologic, epidemiology of infectious disease: general principles 25 r1 animals rabies, yersinia pestis, leptospira, nontyphoid (zoonoses). Rabies is a very serious viral infection that attacks the nervous system if not treated it usually leads to death although humans getting infected with rabies is rare, it happens occasionally. Start studying chapter 37 human disease caused by viruses and prions learn vocabulary, terms, and more with flashcards, games, and other study tools can cause congenital viral diease symptoms often like mononucleosis different strains of rabies virus negative strand, bullet shaped, rna virus highly neurotropic.
Learn about viral diseases on healthgradescom, including information on symptoms, causes and treatments. Humans catch the rabies virus from another animal through a bite or scratch in countries where dogs commonly have rabies more than 99 percent of human cases are the result of dog bites in the united states less than five percent of cases are the result of dogs, and bats are the primary vector. The characteristics of the immune reaction to the same virus may differ in different individuals depending on their genetic constitutions rabies is a viral disease that causes acute inflammation of the brain in humans and other warm-blooded animals rabies is.
Prevention of viral diseases, vaccines and antiviral drugs dj wise1, rabies virus protein expressed in vaccinia virus f some of these antibodies have the antigenic characteristics of the original antigen these are called anti-idiotype antibodies thus far anti-idiotype vaccines have. Signs and symptoms of rabies once rabies infection occurs, the virus grows in muscle tissue and may go undetected for several days or months during this incubation (or latent) period, the animal appears healthy and shows no sign of infection. Acute respiratory infection is an infection that may interfere with normal breathing it usually begins as a viral infection in the nose, windpipe, or lungs.
Introduction yellow fever virus (yfv) is the prototype of the genus flavivirus of the family flaviviridae and causes yellow fever (yf) disease in human infections, the symptoms range from asymptomatic or mild characteristics to a hemorrhagic syndrome that can potentially lead to a fatal outcome with organ failure. Introduction to virology i: viral structure and function on the following three characteristics: a type of viral nucleic acid (rna or dna, single-stranded or double- rabies virus) for other neurotropic agents, the central nervous system is seeded following viremia. But the most difficult trick in defining the oldest known diseases may be in how you define the word disease for the purposes of this article, we'll explore only human, infectious, viral or.