Puumala virus: Difference between revisions

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{{Infobox virus
{{Short description|A detailed overview of the Puumala virus}}
{{Taxobox
| name = Puumala virus
| name = Puumala virus
| image = Puumala_virus_EM.jpg
| image = Puumala_virus_Rötelmaus.jpg
| image_caption = Electron micrograph of Puumala virus
| image_caption = The bank vole, a primary host of the Puumala virus
| virus_group = V
| image_align = right
| ordo = [[Bunyavirales]]
| familia = [[Hantaviridae]]
| genus = [[Orthohantavirus]]
| species = Puumala orthohantavirus
}}
}}


'''Puumala virus''' is a species of [[Orthohantavirus]] that is primarily responsible for causing a mild form of [[hemorrhagic fever with renal syndrome]] (HFRS) known as nephropathia epidemica. This virus is endemic to Europe and is transmitted to humans through contact with the excreta of infected rodents, particularly the [[bank vole]] (''Myodes glareolus'').
The '''Puumala virus''' is a species of [[hantavirus]] that primarily infects the [[bank vole]] (''Myodes glareolus''). It is known to cause a mild form of [[hemorrhagic fever with renal syndrome]] (HFRS) in humans, commonly referred to as [[nephropathia epidemica]].


== Virology ==
==Virology==
Puumala virus is a member of the [[Hantaviridae]] family, which is part of the order [[Bunyavirales]]. It is an enveloped virus with a negative-sense, single-stranded RNA genome. The genome is segmented into three parts: the small (S), medium (M), and large (L) segments, which encode the nucleocapsid protein, glycoproteins (Gn and Gc), and the RNA-dependent RNA polymerase, respectively.
The Puumala virus is a member of the [[Hantaviridae]] family, which are [[negative-sense single-stranded RNA viruses]]. The virus is primarily transmitted to humans through inhalation of aerosolized particles from the droppings, urine, or saliva of infected rodents, particularly the bank vole.


== Transmission ==
==Epidemiology==
The primary reservoir host of Puumala virus is the [[bank vole]]. Humans typically become infected through inhalation of aerosolized particles from rodent urine, droppings, or nesting materials. Direct contact with rodents or their excreta can also lead to transmission. Human-to-human transmission is extremely rare.
Puumala virus is predominantly found in [[Europe]], with a high incidence in [[Scandinavia]], [[Finland]], and parts of [[Russia]]. The distribution of the virus closely follows the habitat of its primary host, the bank vole. Human infections are more common in rural areas where contact with rodent habitats is more likely.


== Clinical Manifestations ==
==Clinical Manifestations==
Infection with Puumala virus leads to nephropathia epidemica, a milder form of HFRS. Symptoms typically include fever, headache, back pain, abdominal pain, and renal dysfunction. The disease is usually self-limiting, but in some cases, it can lead to acute kidney injury requiring hospitalization.
In humans, infection with the Puumala virus leads to nephropathia epidemica, a milder form of HFRS. Symptoms typically include sudden onset of fever, headache, back pain, abdominal pain, and sometimes [[blurred vision]]. In severe cases, it can lead to acute kidney injury, although most patients recover fully with supportive care.


== Diagnosis ==
==Diagnosis==
Diagnosis of Puumala virus infection is primarily based on serological tests that detect specific antibodies (IgM and IgG) against the virus. Molecular techniques such as RT-PCR can also be used to detect viral RNA in blood or tissue samples.
Diagnosis of Puumala virus infection is primarily based on clinical symptoms and confirmed through serological tests that detect specific antibodies against the virus. [[Polymerase chain reaction]] (PCR) can also be used to detect viral RNA in blood samples.


== Treatment ==
==Prevention==
There is no specific antiviral treatment for Puumala virus infection. Management is primarily supportive, focusing on maintaining fluid and electrolyte balance and monitoring renal function. In severe cases, dialysis may be required.
Preventive measures focus on reducing human exposure to rodent excreta. This includes sealing homes to prevent rodent entry, maintaining cleanliness to deter rodent infestations, and using protective equipment when cleaning areas with potential rodent contamination.


== Prevention ==
==Treatment==
Preventive measures include reducing exposure to rodent habitats, particularly in endemic areas. This can be achieved by sealing homes to prevent rodent entry, maintaining cleanliness to deter rodent infestation, and using protective equipment when cleaning areas contaminated with rodent excreta.
There is no specific antiviral treatment for Puumala virus infection. Management is mainly supportive, focusing on maintaining fluid balance and monitoring renal function. In severe cases, hospitalization may be required for intravenous fluids and dialysis.


== Epidemiology ==
==Research==
Puumala virus is predominantly found in Northern and Central Europe, with the highest incidence in Finland, Sweden, and Russia. The incidence of nephropathia epidemica varies seasonally and is influenced by the population dynamics of the bank vole.
Ongoing research is focused on understanding the virus's pathogenesis, improving diagnostic methods, and developing potential vaccines. Studies are also exploring the ecological dynamics between the virus and its rodent host to better predict and manage outbreaks.


== Also see ==
==Related pages==
* [[Hantavirus]]
* [[Hantavirus]]
* [[Hemorrhagic fever with renal syndrome]]
* [[Hemorrhagic fever with renal syndrome]]
* [[Orthohantavirus]]
* [[Bank vole]]
* [[Bank vole]]


{{Hantaviridae}}
[[Category:Hantaviruses]]
 
[[Category:Zoonotic viral diseases]]
[[Category:Orthohantavirus]]
[[Category:Rodent-carried diseases]]
[[Category:Viral diseases]]
<gallery>
[[Category:Zoonoses]]
File:Rötelmaus.jpg|Puumala virus
</gallery>

Latest revision as of 01:48, 20 February 2025

A detailed overview of the Puumala virus



The Puumala virus is a species of hantavirus that primarily infects the bank vole (Myodes glareolus). It is known to cause a mild form of hemorrhagic fever with renal syndrome (HFRS) in humans, commonly referred to as nephropathia epidemica.

Virology[edit]

The Puumala virus is a member of the Hantaviridae family, which are negative-sense single-stranded RNA viruses. The virus is primarily transmitted to humans through inhalation of aerosolized particles from the droppings, urine, or saliva of infected rodents, particularly the bank vole.

Epidemiology[edit]

Puumala virus is predominantly found in Europe, with a high incidence in Scandinavia, Finland, and parts of Russia. The distribution of the virus closely follows the habitat of its primary host, the bank vole. Human infections are more common in rural areas where contact with rodent habitats is more likely.

Clinical Manifestations[edit]

In humans, infection with the Puumala virus leads to nephropathia epidemica, a milder form of HFRS. Symptoms typically include sudden onset of fever, headache, back pain, abdominal pain, and sometimes blurred vision. In severe cases, it can lead to acute kidney injury, although most patients recover fully with supportive care.

Diagnosis[edit]

Diagnosis of Puumala virus infection is primarily based on clinical symptoms and confirmed through serological tests that detect specific antibodies against the virus. Polymerase chain reaction (PCR) can also be used to detect viral RNA in blood samples.

Prevention[edit]

Preventive measures focus on reducing human exposure to rodent excreta. This includes sealing homes to prevent rodent entry, maintaining cleanliness to deter rodent infestations, and using protective equipment when cleaning areas with potential rodent contamination.

Treatment[edit]

There is no specific antiviral treatment for Puumala virus infection. Management is mainly supportive, focusing on maintaining fluid balance and monitoring renal function. In severe cases, hospitalization may be required for intravenous fluids and dialysis.

Research[edit]

Ongoing research is focused on understanding the virus's pathogenesis, improving diagnostic methods, and developing potential vaccines. Studies are also exploring the ecological dynamics between the virus and its rodent host to better predict and manage outbreaks.

Related pages[edit]