CMAJ• NOV. 30, 1999; 161 (11) 1419 nation showed mild diffuse swelling of the cerebral
hemispheres with diffuse meningeal congestion. Histological examination revealed an …

Background. Powassan virus (POWV) is a rarely diagnosed cause of encephalitis in the
United States. In the Northeast, it is transmitted by Ixodes scapularis, the same vector that …

IN 1933 DAWSON1 drew attention, in this journal, to an encephalitis that was typified bv
intranuclear inclusion bodies. Subse-quentlv, the disease became widely recognized as an …

A case of encephalitis due to Powassan virus in a central New Jersey woman is described.
Serologic data were compatible with current Powassan virus infection. The patient made an …

• A boy from New York traveling in Nova Scotia had olfactory hallucinations and other signs
of temporal lobe involvement, leading to a diagnosis of herpes simplex encephalitis. The …

Powassan virus (POWV) disease is a rare human disease caused by a tick-borne
encephalitis group flavivirus maintained in a transmission cycle between Ixodes cookei and …

Background Powassan virus is a flavivirus related to eastern hemisphere's tick-borne
encephalitis viruses. It can cause a rare but potentially life-threatening disease including …

Eleven cases are described, 4 with post-mortem examination. All patients suffered from a
sporadic form of encephalitis, occurring mainly in females in the age range 4.5–33 years …

Powassan virus infection was confirmed serologically in three children with a clinical
diagnosis of encephalitis (two) or meningoencephalitis (one). One child had a paresis and …

Two major epidemics of viral encephalitis occurred in Asia in 1997 and 1998. The first was a
re‐emergence of neurovirulent strains of enterovirus 71, which caused severe …