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background : ticks are important vectors and reservoirs of crimean congo hemorrhagic fever (cchf) virus. human beings may be infected whenever the normal life cycle of the infected ticks on non- human vertebrate hosts is interrupted by the undesirable presence of humans in the cycle. a total of 26 species of argasid and ixodid ticks have been recorded in iran; including nine hyalomma, two rhipi...

Existing mouse models of lethal Ebola virus infection do not reproduce hallmark symptoms of Ebola hemorrhagic fever, neither delayed blood coagulation and disseminated intravascular coagulation nor death from shock, thus restricting pathogenesis studies to nonhuman primates. Here we show that mice from the Collaborative Cross panel of recombinant inbred mice exhibit distinct disease phenotypes ...

Several important human diseases worldwide are caused by tick-borne viruses. These diseases have become important public health concerns in recent years. The tick-borne viruses that cause diseases in humans mainly belong to 3 families: Bunyaviridae, Flaviviridae, and Reoviridae. In this review, we focus on therapeutic approaches for several of the more important tick-borne viruses from these 3 ...

UNLABELLED Tick-borne encephalitis virus (TBEV) and Omsk hemorrhagic fever virus (OHFV) are highly pathogenic tick-borne flaviviruses; TBEV causes neurological disease in humans, while OHFV causes a disease typically identified with hemorrhagic fever. Although TBEV and OHFV are closely related genetically, the viral determinants responsible for these distinct disease phenotypes have not been id...

Encephalopathy in dengue hemorrhagic fever is a very rare condition and usually occurrs in the febrile stage. We report a 29-year-old woman, who presented with acute fever, thrombocytopenia and positive IgM antibodies for dengue virus. On the fourth hospital day, the fever subsided and she developed a confusional stage. CT scan and MRI of the brain were within normal limits. Electroencephalogra...

This is the first case of virus-associated encephalitis/encephalopathy in which the pathogen was Hantaan virus. A 53-yr-old man presented fever, renal failure and a hemorrhagic tendency and he was diagnosed with hemorrhagic fever with renal failure syndrome (HFRS). In the course of his illness, mild neurologic symptoms such as dizziness and confusion developed and magnetic resonance images reve...

Background:Crimean Congo Hemorrhagic Fever (CCHF) is an emerging tick-borne viral zoonotic disease that endemic in Iran. The CCHF virus spread by RNA of the genus Orthonairovirus , family Nairoviridae. has been identified as most frequent hemorrhagic fever route transmission to humans through infected tick bites, contact with livestock, blood or tissues humans. Objectives: aim this study was in...