This claim is false because there is no direct translation between "hanta" and Hebrew. Additionally, the linked source is not credible. The name of the virus originated from the "Hataan River", located in Korea, where a family of viruses were discovered in the 1970s.
As a primary source I looked into the National Institute of Health, who officially reported, "In 1978, the etiological agent of Korean Hemerologic fever was isolated from small infected field rodent Apodemus agrarius near Hantan river in South Korea." The institute follows to analyze the originate of Hantavirus and connecting viruses, revealing that there is no correlation to a Hebrew connotation.
I also used google translate to confirm there is relevance. But, the confusion with the modern Israeli slang meaning "scam" or "B.S.": Kharta/Khanta, could have stimulated the assumption to the relation of words.
Additionally, an article acknowledging the misconception of the originated word, covered possible biases stating that it is simply a social media conspiracy, arguing it the claim is an antisemitic conspiracy.
Overall, there are existing documented deaths worldwide, recognized by the CDC and WHO. This goes invalidates the claim stating that the virus is fake.
https://pmc.ncbi.nlm.nih.gov/articles/PMC2880890/
https://www.motherjones.com/politics/2026/05/hantavirus-hebrew/