Qalyub virus

{{Short description|Species of virus}}

{{Virusbox

| name = Qalyub virus

|image =

|image_caption =

|image_alt =

|parent = Orthonairovirus

|species = Orthonairovirus qalyubense

| synonyms = * Qalyub orthonairovirus

| synonyms_ref = {{cite web|title=History of the taxon: Species: Orthonairovirus qalyubense (2024 Release, MSL #40)|url=https://ictv.global/taxonomy/taxondetails?taxnode_id=202400078&taxon_name=Orthonairovirus%20qalyubense|publisher=International Committee on Taxonomy of Viruses|access-date=18 March 2025}}

}}

Qalyub virus (Orthonairovirus qalyubense) is a virus discovered in a rat's nest in a tomb wall in the Egyptian town of Qalyub ({{langx|arz|قليوب}} {{IPA|arz|ʔælˈjuːb|pron}}) in 1952.{{Cite journal

| last = Taylor

| first = R.M.

| title = No. 222, Qalyub (QYB)

| journal = American Journal of Tropical Medicine and Hygiene

| volume = 19

| issue = 6 part 2

| pages = 1115–1116

| year = 1970

| doi = 10.4269/ajtmh.1970.19.1115

| url = http://www.ajtmh.org/cgi/content/abstract/19/6_Part_2/1115?maxtoshow=&HITS=10&hits=10&RESULTFORMAT=&andorexactfulltext=and&searchid=1&FIRSTINDEX=0&sortspec=relevance&volume=19&firstpage=1115&resourcetype=HWCIT

| access-date = 14 December 2009| url-access = subscription

}} The primary vector for transmission is the Carios erraticus tick,{{Cite book

| last = Kurstak

| first = Edouard

|author2=R.G. Marusyk |author3=F.A. Murphy |author4=M.H.V. Van Regenmortel

| title = Applied Virology Research, Volume 2: Virus Variability, Epidemiology, and Control

| publisher = Plenum Publishing Corporation

| year = 1990

| location = New York, New York

| pages = 341

| url = https://books.google.com/books?id=8IqP-MqI36MC&dq=qalyub+virus+humans&pg=PA341

| isbn = 978-0-306-43359-7}} and thus it is an arbovirus.

There is no evidence of clinical disease in humans.