<s id="NEST_Infno.s1">Influensa gir feber og smerter i hele kroppen.</s> <s id="NEST_Inf_149en.s1">Influenza gives fever and pain throughout the body.</s>

<s id="NEST_Infno.s2">Vanligvis blir mellom fem og ti prosent av befolkningen syke i løpet av en vintersesong.</s> <s id="NEST_Inf_149en.s2">Usually between five and ten percent of the population become ill during a winter season.</s>

<s id="NEST_Infno.s3">Viruset kan enkelte år gi verdensomspennende epidemier med mange dødsfall og er derfor under nøye overvåkning.</s> <s id="NEST_Inf_149en.s3">Some years the virus can cause world wide epidemics with many deaths, and thus it is under strict surveillance.</s>

<s id="NEST_Infno.s4">Faglig revidert: 26.06.2007.</s> <s id="NEST_Inf_149en.s4">Professionally audited: 06.26.2007.</s>

<s id="NEST_Infno.s5">Lenker vedr. influensa A(H1N1) – svineinfluensa langt til 30.04.2009.</s> <s id="NEST_Inf_149en.s5">Links concerning influenza A(H1N1) – swine flu added 04.30.2009.</s>

<s id="NEST_Inf_149en.s6">Section on treatment updated 11.27.2009.</s>

<s id="NEST_Infno.s6">Oppdatert avsnitt vaksine 22.12.2010.</s> <s id="NEST_Inf_149en.s7">Updated section on vaccine 12.22.2010</s>

<s id="NEST_Infno.s7">Hvert år i perioden desember til april rammes befolkningen på den nordlige halvkule av smittsomme influensaepidemier.</s> <s id="NEST_Inf_149en.s8">Every year between December and April the population on the northern hemisphere is affected by contagious influenza epidemics.</s>

<s id="NEST_Infno.s8">Dette kalles sesonginfluensa.</s> <s id="NEST_Inf_149en.s9">This is called seasonal influenza.</s>

<s id="NEST_Infno.s9">De vanligste influensatypene som gir epidemier, er type A og B.</s> <s id="NEST_Inf_149en.s10">The most usual types of influenza giving epidemics are type A and B.</s>

<s id="NEST_Infno.s10">Nye varianter av type A og B kommer hvert år.</s> <s id="NEST_Inf_149en.s11">New strains of type A and B develop every year.</s>

<s id="NEST_Infno.s11">Nye stammer får navn etter stedet hvor de først ble oppdaget, f.eks type A/Sydney.</s> <s id="NEST_Inf_149en.s12">These are named after the place of their discovery, such as type A/Sydney.</s>

<s id="NEST_Infno.s12">Influensa kommer av det latinske ordet influere – flyte inn.</s> <s id="NEST_Inf_149en.s13">Influenza comes from the Latin word influere – to flow in.</s>

<s id="NEST_Infno.s13">Spesielt om influensa A(H1N1) – svineinfluensa, se rammen til høyre.</s> <s id="NEST_Inf_149en.s14">Specifically about influenza A(H1N1) – swine flu, see frame to the right.</s>

<s id="NEST_Infno.s14">Influensa A(H1N1) – svineinfluensa</s> <s id="NEST_Inf_149en.s15">Influenza A(H1N1) – swine flu</s>

<s id="NEST_Infno.s15">- Se spørsmål og svar</s> <s id="NEST_Inf_149en.s16">* See FAQ</s>

<s id="NEST_Infno.s16">- Se temaside</s> <s id="NEST_Inf_149en.s17">* See theme page</s>

<s id="NEST_Infno.s17">Fugleinfluensa</s> <s id="NEST_Inf_149en.s18">Bird flu</s>

<s id="NEST_Infno.s18">Fugle-influensa smitter sjelden til mennesker.</s> <s id="NEST_Inf_149en.s19">Bird flu rarely transmits to humans.</s>

<s id="NEST_Infno.s19">Men dersom det skjer, og disse menneskene samtidig smittes av vanlig influensa, kan infiserte celler i kroppen produsere en krysning mellom de to virusene.</s> <s id="NEST_Inf_149en.s20">But if it happens and these people are infected by ordinary flu at the same time, infected cells in the body can create a hybrid between the two viruses.</s>

<s id="NEST_Infno.s20">Da kan vi teoretisk få et nytt virus som få eller ingen er immune mot.</s> <s id="NEST_Inf_149en.s21">This can theoretically cause a new virus strain to which few or no one are immune.</s>

<s id="NEST_Infno.s21">Historie</s> <s id="NEST_Inf_149en.s22">History</s>

<s id="NEST_Infno.s22">Til sammen 18 verdensomfattende influensaepidemier er kjent fra historien.</s> <s id="NEST_Inf_149en.s23">A total of 18 world wide influenza epidemics are know in history.</s>

<s id="NEST_Infno.s23">Den første pandemien ble beskrevet i 1580.</s> <s id="NEST_Inf_149en.s24">The first pandemic was described in 1580.</s>

<s id="NEST_Infno.s24">Den største var Spanskesyken i 1918-1919, som førte til 25-40 millioner dødsfall i verden.</s> <s id="NEST_Inf_149en.s25">The most extensive was the 1918-19 Spanish flu, leading to 25-40 million deaths throughout the world.</s>

<s id="NEST_Infno.s25">I Norge døde ca. 15 000 personer.</s> <s id="NEST_Inf_149en.s26">About 15000 people died in Norway.</s>

<s id="NEST_Infno.s26">De to siste større pandemiene var Asiasyken i 1957 og Hong Kong-syken i 1968.</s> <s id="NEST_Inf_149en.s27">The two most recent larger pandemics were the 1957 Asian flu and the 1968 Hong Kong flu.</s>

<s id="NEST_Infno.s27">Influensavirus av type A ble første gang påvist i 1933 og type B i 1940.</s> <s id="NEST_Inf_149en.s28">The influenza virus type A was first detected in 1933 and type B in 1940.</s>

<s id="NEST_Infno.s28">På slutten av 1940-tallet ble den første vaksinen utviklet.</s> <s id="NEST_Inf_149en.s29">The first vaccine was developed in the late 1940s.</s>

<s id="NEST_Infno.s29">Dråpe- og kontaktsmitte</s> <s id="NEST_Inf_149en.s30">Infection through secretion and physical contact</s>

<s id="NEST_Infno.s30">Influensa smitter hvis man puster inn dråper med influensavirus fra smittede personer som hoster eller nyser, såkalt nærdråpesmitte.</s> <s id="NEST_Inf_149en.s31">Influenza infects through breathing in droplets with the influenza virus from coughing and sneezing by contaminated individuals, so called secretion infection.</s>

<s id="NEST_Infno.s31">Man kan også smittes ved direkte kontakt.</s> <s id="NEST_Inf_149en.s32">One can also get contaminated by physical contact.</s>

<s id="NEST_Infno.s32">En liten smittedose er nok for å gi sykdom.</s> <s id="NEST_Inf_149en.s33">A small infectious dose is enough to cause illness.</s>

<s id="NEST_Infno.s33">Inkubasjonstiden fra smitte til symptomer er vanligvis to dager, men varierer fra en til tre dager.</s> <s id="NEST_Inf_149en.s34">The incubation, the time between contamination and symptoms, is normally about two days, but can vary from one to three days.</s>

<s id="NEST_Infno.s34">Man er smitteførende fra den dagen symptomene viser seg og i tre-fem dager etterpå.</s> <s id="NEST_Inf_149en.s35">An individual is bacillary (/can spread the infection) from the first day the symptoms show and for three to four days after the illness.</s>

<s id="NEST_Infno.s35">Når man har gjennomgått influensasykdom med én virusstamme, er man vanligvis immun i mange år etterpå mot denne stammen.</s> <s id="NEST_Inf_149en.s36">Once someone have gone through an illness caused by a specific strain of virus, they are normally immune to this strain for many years afterwards.</s>

<s id="NEST_Infno.s36">Man kan også være immun mot lignende stammer, såkalt kryssimmunitet.</s> <s id="NEST_Inf_149en.s37">One can also be immune to similar strains, so called cross-immunity.</s>

<s id="NEST_Infno.s1">Influensa gir feber og smerter i hele kroppen.</s>	<s id="NEST_Inf_149en.s1">Influenza gives fever and pain throughout the body.</s>
<s id="NEST_Infno.s2">Vanligvis blir mellom fem og ti prosent av befolkningen syke i løpet av en vintersesong.</s>	<s id="NEST_Inf_149en.s2">Usually between five and ten percent of the population become ill during a winter season.</s>
<s id="NEST_Infno.s3">Viruset kan enkelte år gi verdensomspennende epidemier med mange dødsfall og er derfor under nøye overvåkning.</s>	<s id="NEST_Inf_149en.s3">Some years the virus can cause world wide epidemics with many deaths, and thus it is under strict surveillance.</s>
<s id="NEST_Infno.s4">Faglig revidert: 26.06.2007.</s>	<s id="NEST_Inf_149en.s4">Professionally audited: 06.26.2007.</s>
<s id="NEST_Infno.s5">Lenker vedr. influensa A(H1N1) – svineinfluensa langt til 30.04.2009.</s>	<s id="NEST_Inf_149en.s5">Links concerning influenza A(H1N1) – swine flu added 04.30.2009.</s>
	<s id="NEST_Inf_149en.s6">Section on treatment updated 11.27.2009.</s>
<s id="NEST_Infno.s6">Oppdatert avsnitt vaksine 22.12.2010.</s>	<s id="NEST_Inf_149en.s7">Updated section on vaccine 12.22.2010</s>
<s id="NEST_Infno.s7">Hvert år i perioden desember til april rammes befolkningen på den nordlige halvkule av smittsomme influensaepidemier.</s>	<s id="NEST_Inf_149en.s8">Every year between December and April the population on the northern hemisphere is affected by contagious influenza epidemics.</s>
<s id="NEST_Infno.s8">Dette kalles sesonginfluensa.</s>	<s id="NEST_Inf_149en.s9">This is called seasonal influenza.</s>
<s id="NEST_Infno.s9">De vanligste influensatypene som gir epidemier, er type A og B.</s>	<s id="NEST_Inf_149en.s10">The most usual types of influenza giving epidemics are type A and B.</s>
<s id="NEST_Infno.s10">Nye varianter av type A og B kommer hvert år.</s>	<s id="NEST_Inf_149en.s11">New strains of type A and B develop every year.</s>
<s id="NEST_Infno.s11">Nye stammer får navn etter stedet hvor de først ble oppdaget, f.eks type A/Sydney.</s>	<s id="NEST_Inf_149en.s12">These are named after the place of their discovery, such as type A/Sydney.</s>
<s id="NEST_Infno.s12">Influensa kommer av det latinske ordet influere – flyte inn.</s>	<s id="NEST_Inf_149en.s13">Influenza comes from the Latin word influere – to flow in.</s>
<s id="NEST_Infno.s13">Spesielt om influensa A(H1N1) – svineinfluensa, se rammen til høyre.</s>	<s id="NEST_Inf_149en.s14">Specifically about influenza A(H1N1) – swine flu, see frame to the right.</s>
<s id="NEST_Infno.s14">Influensa A(H1N1) – svineinfluensa</s>	<s id="NEST_Inf_149en.s15">Influenza A(H1N1) – swine flu</s>
<s id="NEST_Infno.s15">- Se spørsmål og svar</s>	<s id="NEST_Inf_149en.s16">* See FAQ</s>
<s id="NEST_Infno.s16">- Se temaside</s>	<s id="NEST_Inf_149en.s17">* See theme page</s>
<s id="NEST_Infno.s17">Fugleinfluensa</s>	<s id="NEST_Inf_149en.s18">Bird flu</s>
<s id="NEST_Infno.s18">Fugle-influensa smitter sjelden til mennesker.</s>	<s id="NEST_Inf_149en.s19">Bird flu rarely transmits to humans.</s>
<s id="NEST_Infno.s19">Men dersom det skjer, og disse menneskene samtidig smittes av vanlig influensa, kan infiserte celler i kroppen produsere en krysning mellom de to virusene.</s>	<s id="NEST_Inf_149en.s20">But if it happens and these people are infected by ordinary flu at the same time, infected cells in the body can create a hybrid between the two viruses.</s>
<s id="NEST_Infno.s20">Da kan vi teoretisk få et nytt virus som få eller ingen er immune mot.</s>	<s id="NEST_Inf_149en.s21">This can theoretically cause a new virus strain to which few or no one are immune.</s>
<s id="NEST_Infno.s21">Historie</s>	<s id="NEST_Inf_149en.s22">History</s>
<s id="NEST_Infno.s22">Til sammen 18 verdensomfattende influensaepidemier er kjent fra historien.</s>	<s id="NEST_Inf_149en.s23">A total of 18 world wide influenza epidemics are know in history.</s>
<s id="NEST_Infno.s23">Den første pandemien ble beskrevet i 1580.</s>	<s id="NEST_Inf_149en.s24">The first pandemic was described in 1580.</s>
<s id="NEST_Infno.s24">Den største var Spanskesyken i 1918-1919, som førte til 25-40 millioner dødsfall i verden.</s>	<s id="NEST_Inf_149en.s25">The most extensive was the 1918-19 Spanish flu, leading to 25-40 million deaths throughout the world.</s>
<s id="NEST_Infno.s25">I Norge døde ca. 15 000 personer.</s>	<s id="NEST_Inf_149en.s26">About 15000 people died in Norway.</s>
<s id="NEST_Infno.s26">De to siste større pandemiene var Asiasyken i 1957 og Hong Kong-syken i 1968.</s>	<s id="NEST_Inf_149en.s27">The two most recent larger pandemics were the 1957 Asian flu and the 1968 Hong Kong flu.</s>
<s id="NEST_Infno.s27">Influensavirus av type A ble første gang påvist i 1933 og type B i 1940.</s>	<s id="NEST_Inf_149en.s28">The influenza virus type A was first detected in 1933 and type B in 1940.</s>
<s id="NEST_Infno.s28">På slutten av 1940-tallet ble den første vaksinen utviklet.</s>	<s id="NEST_Inf_149en.s29">The first vaccine was developed in the late 1940s.</s>
<s id="NEST_Infno.s29">Dråpe- og kontaktsmitte</s>	<s id="NEST_Inf_149en.s30">Infection through secretion and physical contact</s>
<s id="NEST_Infno.s30">Influensa smitter hvis man puster inn dråper med influensavirus fra smittede personer som hoster eller nyser, såkalt nærdråpesmitte.</s>	<s id="NEST_Inf_149en.s31">Influenza infects through breathing in droplets with the influenza virus from coughing and sneezing by contaminated individuals, so called secretion infection.</s>
<s id="NEST_Infno.s31">Man kan også smittes ved direkte kontakt.</s>	<s id="NEST_Inf_149en.s32">One can also get contaminated by physical contact.</s>
<s id="NEST_Infno.s32">En liten smittedose er nok for å gi sykdom.</s>	<s id="NEST_Inf_149en.s33">A small infectious dose is enough to cause illness.</s>
<s id="NEST_Infno.s33">Inkubasjonstiden fra smitte til symptomer er vanligvis to dager, men varierer fra en til tre dager.</s>	<s id="NEST_Inf_149en.s34">The incubation, the time between contamination and symptoms, is normally about two days, but can vary from one to three days.</s>
<s id="NEST_Infno.s34">Man er smitteførende fra den dagen symptomene viser seg og i tre-fem dager etterpå.</s>	<s id="NEST_Inf_149en.s35">An individual is bacillary (/can spread the infection) from the first day the symptoms show and for three to four days after the illness.</s>
<s id="NEST_Infno.s35">Når man har gjennomgått influensasykdom med én virusstamme, er man vanligvis immun i mange år etterpå mot denne stammen.</s>	<s id="NEST_Inf_149en.s36">Once someone have gone through an illness caused by a specific strain of virus, they are normally immune to this strain for many years afterwards.</s>
<s id="NEST_Infno.s36">Man kan også være immun mot lignende stammer, såkalt kryssimmunitet.</s>	<s id="NEST_Inf_149en.s37">One can also be immune to similar strains, so called cross-immunity.</s>