Influenza type c viruses are not associated with severe disease, epidemics, or pandemics, and. This reduced rate of antigenic change, combined with its limited host range ensures that pandemics of influenza b do not occur. This document presents the overall framework for world bank support to client countries to address the challenges posed by the current avian influenza outbreak and the possibility of a human flu pandemic. Learn from influenza experts like nathan wolfe and michael b. Take flu medicine as directed, if ordered by your doctor.
Neum10, fouc04, koop04 van het influenza bvirus bestaan er twee. Links to external websites are provided as a convenience and should not be construed as an endorsement by the u. They are more closely related to each other than to influenza virus a iva or influenza virus b ivb, containing seven genomic segments and a hemagglutininesterase he. Department of state of the views or products contained therein. It most commonly causes a fever and respiratory problems.
It mostly aects the breathing system but may also a ect the whole body. The inuenza virus is highly contagious and causes serious illness that may result in hospitalization or death. Influenza b virus influenza b almost exclusively infects humans and is less common than influenza a. Box 14049 raleigh, nc 276204049 children 06 years age vaccine immunization shot at birth hbv hepatitis b vaccine 2 months hbv, dtap diphtheria, tetanus, and acellular pertussis, ipv inactivated polio vaccine, hib haemophilus b, rotavirus intestinal virus, pcv. Type a viruses are divided into subtypes, and currently, there are ah1n1 pdm09 and ah3n2 subtypes circulating in the population, while influenza b viruses belong to two lineages. Important changes in the timing of influenza epidemics in the who european. Type b outbreaks also can cause epidemics, but the disease it produces generally is milder than that caused by type a. Be sure to take the medicine as many days as your doctor ordered. A manual for estimating disease burden associated with seasonal influenza. Influenza causes significant loss of workdays, human suffering, and m. Influenza, also called the flu, is a viral disease that affects humans and many animals.
If you are sick with the flu, protect yourself and limit the spread of the flu. Influenza the flu powerpoint presentation medicpresents. Type a is the most common and usually causes the most serious epidemics. Second, type a influenza viruses have a vast animal reservoir, and the. Influenza, one of the most common infectious diseases, is a highly contagious airborne disease that occurs in seasonal epidemics and manifests as an acute febrile illness with variable degrees of systemic symptoms, ranging from mild fatigue to respiratory failure and death. This type of influenza mutates at a rate 23 times lower than type a. Read influenza books like the viral storm and viruses, plagues, and history for free with a free 30day trial. Oklahoma state department of health acute disease service. Pdf in the winter of 20172018, there was significant influenza activity in china, resulting in unprecedented usage of influenza rapid antigen. Pdf detection and characterization of type b influenza virus from. Who global epidemiological surveillance standards for. Global program for avian influenza and human pandemic preparedness and response. This work is licensed under a creative commons attribution. These drugs can help you feel better faster and make the symptoms less intense.
Type c viruses, on the other hand, never have been connected with a large epidemic. Creative commons attributionnoncommercialsharealike license. Revised project development objectives as approved by original approving authority na a pdo indicators indicator baseline value original target values from approval documents formally revised target values actual value achieved at completion or target years. This document contains the who global standards for influenza surveillance. Serbia reported dominance of type b influenza virus, and two. For these drugs to work best, they need to be started within two days after you get sick with the flu. Haemophilus influenzae type b, or hib, can cause a variety of diseases such as meningitis inflammation of the coverings of the spinal column and brain, blood stream infections, pneumonia, arthritis and infections of other parts of the body. Pdf influenza is a highly contagious acute viral infection of the respiratory tract. Influenza a viruses infecting humans have been primarily subtypes h1, h2, and h3 while influenza a subtypes h1 through h17 can infect birds and other.
Influenza vaccines contain both type a and type b viruses. Influenza type a is the primary group affecting both humans and animals. Estas infecciones pueden tener complicaciones graves. Immunization requirements for the school year 2019 2020. Influenza the u inuenza is a contagious disease caused by a group of respiratory viruses called inuenza viruses. Immunization requirements for the school year 20192020 oregon law requires the following shots for school and child care attendance 4 diphtheriatetanuspertussis dtap. Etiology influenza virus c ivc and influenza virus d ivd are enveloped rna viruses in the family orthomyxoviridae. Van het oorzakelijke virus het type en subtype bepalen om postexpositie profylaxe of. Influenza a viruses are divided into subtypes based on the hemagglutinin h and neuraminidase n proteins on their surfaces.
There are two main types of influenza, influenza a and influenza b. Introduction description influenza can be a serious contagious disease spread by droplet transmission through close contact with an infected individual. The most common form of influenza, type a can spread from animals to humans and is known to cause pandemics. Prescription medications called influenza antivirals can help treat the flu.
Influenza a virus is a highly mutable virus with frequent antigenic drift and occasional antigenic shift. The public health agency of canada estimates that in a given year there are an average of 12,200 hospitalizations related to influenza and approximately 3,500. Department of health and human services centers for disease control and prevention. Similar to type a, influenza b is also highly contagious and can have dangerous effects on your health in more severe cases. There are three groups of influenza viruses, called type a, b, or c.