<s id="NEST_Infno.s1">Influensa gir feber og smerter i hele kroppen.</s> <s id="NEST_Inf_152en.s1">Influenza causes fever and pains 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_152en.s2">Five to ten percent of the population will normally get sick during the 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_152en.s3">Some years, the virus can result in worldwide epidemics with many deaths and is therefore under careful observation.</s>

<s id="NEST_Infno.s4">Faglig revidert: 26.06.2007.</s>

<s id="NEST_Infno.s5">Lenker vedr. influensa A(H1N1) – svineinfluensa langt til 30.04.2009.</s>

<s id="NEST_Infno.s6">Oppdatert avsnitt vaksine 22.12.2010.</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_152en.s4">Every year in the period between December and April, the people of the northern hemisphere are struck by contagious influenza epidemics.</s>

<s id="NEST_Infno.s8">Dette kalles sesonginfluensa.</s> <s id="NEST_Inf_152en.s5">This is called the seasonal flu.</s>

<s id="NEST_Infno.s9">De vanligste influensatypene som gir epidemier, er type A og B.</s> <s id="NEST_Inf_152en.s6">The most common types of influenza that result in 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_152en.s7">New varieties of Type A and B emerges 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_152en.s8">New strains are named by the location where they were first discovered, f. ex type A/Sydney.</s>

<s id="NEST_Infno.s12">Influensa kommer av det latinske ordet influere – flyte inn.</s> <s id="NEST_Inf_152en.s9">Influenza stems from an Italian word and literally means “influence”.</s>

<s id="NEST_Infno.s13">Spesielt om influensa A(H1N1) – svineinfluensa, se rammen til høyre.</s> <s id="NEST_Inf_152en.s10">Specifically on influenza A(H1N1) – Swine flu, see right frame.</s>

<s id="NEST_Infno.s14">Influensa A(H1N1) – svineinfluensa</s> <s id="NEST_Inf_152en.s11">Influenza A(H1N1) – Swine flu</s>

<s id="NEST_Infno.s15">- Se spørsmål og svar</s> <s id="NEST_Inf_152en.s12">See questions</s>

<s id="NEST_Infno.s16">- Se temaside</s> <s id="NEST_Inf_152en.s13">See theme page</s>

<s id="NEST_Infno.s17">Fugleinfluensa</s> <s id="NEST_Inf_152en.s14">Bird flu</s>

<s id="NEST_Infno.s18">Fugle-influensa smitter sjelden til mennesker.</s> <s id="NEST_Inf_152en.s15">The bird flu is very rarely transferred 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_152en.s16">But if this happens, and these humans happen to be infected by the regular seasonal flu, infected cells in the body may produce a cross-breed of the two types of 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_152en.s17">Theoretically speaking, we may end up with a new virus that nobody or very few have any resistance or immunity against.</s>

<s id="NEST_Infno.s21">Historie</s> <s id="NEST_Inf_152en.s18">History</s>

<s id="NEST_Infno.s22">Til sammen 18 verdensomfattende influensaepidemier er kjent fra historien.</s> <s id="NEST_Inf_152en.s19">A total of 18 world wide influenza epidemics are known in history.</s>

<s id="NEST_Infno.s23">Den første pandemien ble beskrevet i 1580.</s> <s id="NEST_Inf_152en.s20">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_152en.s21">The largest pandemic to be known was the Spanish Flu in 1918-19, which resulted in the deaths of 25-40 million people in the world.</s>

<s id="NEST_Infno.s25">I Norge døde ca. 15 000 personer.</s> <s id="NEST_Inf_152en.s22">In Norway, about 15 000 people died.</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_152en.s23">The two most recent and larger pandemics were the Asian Flu in 1957 and the Hong Kong Flu in 1968.</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_152en.s24">The influenza virus of type A was detected for the first time in 1933 and type B for the first time in 1940.</s>

<s id="NEST_Infno.s28">På slutten av 1940-tallet ble den første vaksinen utviklet.</s> <s id="NEST_Inf_152en.s25">The first vaccine was developed by the end of the 1940’s.</s>

<s id="NEST_Infno.s29">Dråpe- og kontaktsmitte</s> <s id="NEST_Inf_152en.s26">Transferable infections – by fluids or 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_152en.s27">Influenza is contagious if one inhales drops of influenza viruses from an already infected person who coughs or sneezes.</s>

<s id="NEST_Infno.s31">Man kan også smittes ved direkte kontakt.</s> <s id="NEST_Inf_152en.s28">One can also become infected by direct physical contact with and infected person.</s>

<s id="NEST_Infno.s32">En liten smittedose er nok for å gi sykdom.</s> <s id="NEST_Inf_152en.s29">One 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_152en.s30">The incubation period from infection to symptoms is usually two days but it may 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_152en.s31">One is contagious from the day one shows symptoms to three-five days afterwards.</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_152en.s32">When one has gone through a period of illness caused by a certain virus strain, one is usually immune to this particular strain for many years.</s>

<s id="NEST_Infno.s36">Man kan også være immun mot lignende stammer, såkalt kryssimmunitet.</s> <s id="NEST_Inf_152en.s33">One can also be immune towards 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_152en.s1">Influenza causes fever and pains 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_152en.s2">Five to ten percent of the population will normally get sick during the 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_152en.s3">Some years, the virus can result in worldwide epidemics with many deaths and is therefore under careful observation.</s>
<s id="NEST_Infno.s4">Faglig revidert: 26.06.2007.</s>
<s id="NEST_Infno.s5">Lenker vedr. influensa A(H1N1) – svineinfluensa langt til 30.04.2009.</s>
<s id="NEST_Infno.s6">Oppdatert avsnitt vaksine 22.12.2010.</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_152en.s4">Every year in the period between December and April, the people of the northern hemisphere are struck by contagious influenza epidemics.</s>
<s id="NEST_Infno.s8">Dette kalles sesonginfluensa.</s>	<s id="NEST_Inf_152en.s5">This is called the seasonal flu.</s>
<s id="NEST_Infno.s9">De vanligste influensatypene som gir epidemier, er type A og B.</s>	<s id="NEST_Inf_152en.s6">The most common types of influenza that result in 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_152en.s7">New varieties of Type A and B emerges 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_152en.s8">New strains are named by the location where they were first discovered, f. ex type A/Sydney.</s>
<s id="NEST_Infno.s12">Influensa kommer av det latinske ordet influere – flyte inn.</s>	<s id="NEST_Inf_152en.s9">Influenza stems from an Italian word and literally means “influence”.</s>
<s id="NEST_Infno.s13">Spesielt om influensa A(H1N1) – svineinfluensa, se rammen til høyre.</s>	<s id="NEST_Inf_152en.s10">Specifically on influenza A(H1N1) – Swine flu, see right frame.</s>
<s id="NEST_Infno.s14">Influensa A(H1N1) – svineinfluensa</s>	<s id="NEST_Inf_152en.s11">Influenza A(H1N1) – Swine flu</s>
<s id="NEST_Infno.s15">- Se spørsmål og svar</s>	<s id="NEST_Inf_152en.s12">See questions</s>
<s id="NEST_Infno.s16">- Se temaside</s>	<s id="NEST_Inf_152en.s13">See theme page</s>
<s id="NEST_Infno.s17">Fugleinfluensa</s>	<s id="NEST_Inf_152en.s14">Bird flu</s>
<s id="NEST_Infno.s18">Fugle-influensa smitter sjelden til mennesker.</s>	<s id="NEST_Inf_152en.s15">The bird flu is very rarely transferred 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_152en.s16">But if this happens, and these humans happen to be infected by the regular seasonal flu, infected cells in the body may produce a cross-breed of the two types of 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_152en.s17">Theoretically speaking, we may end up with a new virus that nobody or very few have any resistance or immunity against.</s>
<s id="NEST_Infno.s21">Historie</s>	<s id="NEST_Inf_152en.s18">History</s>
<s id="NEST_Infno.s22">Til sammen 18 verdensomfattende influensaepidemier er kjent fra historien.</s>	<s id="NEST_Inf_152en.s19">A total of 18 world wide influenza epidemics are known in history.</s>
<s id="NEST_Infno.s23">Den første pandemien ble beskrevet i 1580.</s>	<s id="NEST_Inf_152en.s20">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_152en.s21">The largest pandemic to be known was the Spanish Flu in 1918-19, which resulted in the deaths of 25-40 million people in the world.</s>
<s id="NEST_Infno.s25">I Norge døde ca. 15 000 personer.</s>	<s id="NEST_Inf_152en.s22">In Norway, about 15 000 people died.</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_152en.s23">The two most recent and larger pandemics were the Asian Flu in 1957 and the Hong Kong Flu in 1968.</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_152en.s24">The influenza virus of type A was detected for the first time in 1933 and type B for the first time in 1940.</s>
<s id="NEST_Infno.s28">På slutten av 1940-tallet ble den første vaksinen utviklet.</s>	<s id="NEST_Inf_152en.s25">The first vaccine was developed by the end of the 1940’s.</s>
<s id="NEST_Infno.s29">Dråpe- og kontaktsmitte</s>	<s id="NEST_Inf_152en.s26">Transferable infections – by fluids or 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_152en.s27">Influenza is contagious if one inhales drops of influenza viruses from an already infected person who coughs or sneezes.</s>
<s id="NEST_Infno.s31">Man kan også smittes ved direkte kontakt.</s>	<s id="NEST_Inf_152en.s28">One can also become infected by direct physical contact with and infected person.</s>
<s id="NEST_Infno.s32">En liten smittedose er nok for å gi sykdom.</s>	<s id="NEST_Inf_152en.s29">One 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_152en.s30">The incubation period from infection to symptoms is usually two days but it may 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_152en.s31">One is contagious from the day one shows symptoms to three-five days afterwards.</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_152en.s32">When one has gone through a period of illness caused by a certain virus strain, one is usually immune to this particular strain for many years.</s>
<s id="NEST_Infno.s36">Man kan også være immun mot lignende stammer, såkalt kryssimmunitet.</s>	<s id="NEST_Inf_152en.s33">One can also be immune towards similar strains, so called cross-immunity.</s>