Newly identified · Tick-borne virus

Asian Longhorned Tick Nairovirus (ALTNV)

China · New tick-borne virus reported September 2026 · NEJM
Source: New England Journal of Medicine (A Zoonotic Orthonairovirus from Febrile Patients in China, September 2, 2026).

About ALTNV

Cause
A new orthonairovirus (Nairoviridae family), newly identified in 2026
How it spreads
Bite of an infected Asian longhorned tick; not known to spread person to person
Illness on its own
Mostly mild and flu-like; everyone in the study recovered
Treatment
Supportive care only; no antiviral and no vaccine

Sources: NEJM · CIDRAP

Treatments & Vaccines in Development

ALTNV is newly identified, so there is no drug that targets it and no vaccine. Care is supportive, and prevention comes down to avoiding tick bites.

Supportive careTreatment
Main option
Standard of care

There is no drug that targets ALTNV, so care is supportive: rest, fluids, and treatment of symptoms such as fever, and closer monitoring for anyone who is also infected with the SFTS virus. In the study, people infected with ALTNV alone recovered on their own.

NEJM →
Antiviral drugTreatment
None available
—

No specific antiviral exists for ALTNV. Doctors note that the antivirals used for influenza do not work on it, and antibiotics do not work on any virus, so getting the diagnosis right matters to avoid the wrong medication.

NEJM / expert commentary →
VaccineVaccine
None available
—

There is no vaccine against ALTNV. Because it is newly identified, prevention rests entirely on avoiding tick bites and removing attached ticks promptly.

NEJM →
Approved / in usePositive trial resultsIn clinical trialsEarly researchHalted