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  4. After coronavirus, China detects new virus that can damage brain | Know all about Wetland virus

After coronavirus, China detects new virus that can damage brain | Know all about Wetland virus

Although all the patients did not exhibit identical symptoms, the scientists found nearly all of them had common complaints of fever, dizziness, headache, malaise, myalgia, arthritis, and back pain. Some also had petechiae.

Written By: Ajeet Kumar @Ajeet1994 New Delhi Updated on: September 09, 2024 14:34 IST
wetland virus
Image Source : PIXABAY Representational Image

New Delhi: China, a hotspot for the coronavirus in 2019, which drove the whole world into terrible isolation wards, has again discovered a new virus that can cause brain diseases.  The virus named- Wetland virus (WELV)- was first detected in China's Jinzhou province in June 2019. Some media reports claimed that the person had visited a park in Westland where he got ticked by the virus.

According to a report published by The New England Journal of Medicine on September 4, a patient was admitted with persistent fever and multiple organ dysfunction after a tick bite at Wetland Park in Inner Mongolia in 2019. The scientists claimed that next-generation sequencing in the patient revealed infection with a previously unknown Orthonairovirus. The virus was later designated as Wetland virus (WELV).

Wetland virus found in 17 patients

Subsequently, scientists launched a massive sampling of the people who either visited the same park or complained about the symptoms the doctors discovered in the infected person. "Acute WELV infection was identified in 17 patients from Inner Mongolia, Heilongjiang, Jilin, and Liaoning, China, by means of reverse-transcriptase–polymerase-chain-reaction assay," according to the report.

Symptoms of Wetland virus

Although all the patients did not exhibit identical symptoms, the scientists found nearly all of them had common complaints of fever, dizziness, headache, malaise, myalgia, arthritis, and back pain. Some also had petechiae--  small, round, red or purple spots that appear on the skin or mucous membranes--  and localized lymphadenopathy-- a condition where swollen lymph nodes are only found in one area of the body, such as the neck or armpit.

Wetland virus can impact brain

However, the doctors found a strange case wherein a patient had neurologic symptoms. "Common laboratory findings were leukopenia, thrombocytopenia, and elevated d-dimer and lactate dehydrogenase levels. Serologic assessment of convalescent-stage samples obtained from 8 patients showed WELV-specific antibody titers that were 4 times as high as those in acute-phase samples," according to the report.

Also, the study also underscored the virus- WELV RNA- was detected in five tick species and in sheep, horses, pigs, and Transbaikal zokors (Myospalax psilurus). All the samples were collected from the northeastern region of China. "The virus that was isolated from the index patient and ticks showed cytopathic effects in human umbilical vein endothelial cells. Intraperitoneal injection of the virus resulted in lethal infections in BALB/c, C57BL/6, and Kunming mice. The Haemaphysalis concinna tick is a possible vector that can transovarially transmit WELV," as per the report.

Also Read: What is Wetland Virus? Know causes, symptoms and more about this new tick-borne virus discovered in China

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