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Hantaviruses are primarily transmitted to humans through the inhalation of aerosolized virus particles from the excreta (urine, feces, saliva) of infected rodents. Unlike many other viral zoonoses, human-to-human transmission of hantaviruses is exceptionally rare, with Andes virus being the only documented exception. Understanding the transmission dynamics and implementing effective prevention strategies are critical for reducing the global burden of hantavirus disease.
Figure 1. Overview of hantavirus transmission pathways and host interactions. (Oral et al., 2020)
Each hantavirus species is maintained in nature by a specific rodent or insectivore reservoir host. The virus establishes a persistent, asymptomatic infection in the reservoir, which sheds virus continuously in saliva, urine, and feces. The primary Old World hantavirus reservoirs include Apodemus agrarius (Hantaan virus), Rattus norvegicus (Seoul virus), and Myodes glareolus (Puumala virus). New World hantavirus reservoirs include Peromyscus maniculatus (Sin Nombre virus) and Oligoryzomys longicaudatus (Andes virus).
Human infection occurs when aerosolized viral particles from contaminated rodent excreta are inhaled. Common exposure scenarios include cleaning rodent-infested buildings, agricultural work, construction in rural areas, and outdoor recreational activities such as camping in rodent habitats. The virus can also potentially be transmitted through direct contact with rodent excreta or via rodent bites, although these routes are less common than aerosol transmission.
Table 1. Major Hantavirus Transmission Routes
| Route | Description | Risk Level |
| Aerosol inhalation | Breathing in dust contaminated with rodent urine, feces, or saliva | Primary (highest risk) |
| Direct contact | Touching rodent excreta or nesting materials with broken skin | Moderate |
| Rodent bite | Direct inoculation via bite from infected rodent | Low (uncommon) |
| Person-to-person | Only documented for Andes virus in South America | Rare (ANDV only) |
| Environmental contamination | Contact with contaminated surfaces followed by mucosal exposure | Low to moderate |
Figure 2. Schematic of hantavirus spillover from rodent reservoirs to humans. (Oral et al., 2020)
Several environmental and occupational factors increase the risk of hantavirus exposure. Agricultural workers, forestry workers, and construction laborers in endemic areas face elevated risk due to frequent contact with rodent habitats. Climate change and land use modifications are expanding the geographic range of rodent reservoirs, introducing hantaviruses to new human populations. Seasonal patterns also influence transmission rates, with higher incidence during periods of rodent population peaks, often associated with mast seeding years when food availability surges.
Urban transmission of Seoul virus, carried by Rattus norvegicus, represents an emerging concern in cities worldwide. Unlike sylvatic hantaviruses, SEOV thrives in peridomestic urban environments, and human infections have been documented in major metropolitan areas across Asia, Europe, and the Americas.
Effective rodent control is the cornerstone of hantavirus prevention. This includes sealing gaps and holes in buildings to prevent rodent entry, proper storage of food in rodent-proof containers, regular cleaning and disinfection of potential rodent harborage areas, and trapping to reduce rodent populations in and around dwellings. When cleaning rodent-infested areas, it is essential to ventilate the space for at least 30 minutes, wear protective gloves and masks (N95 or higher), and disinfect surfaces with a bleach solution or commercial disinfectant before sweeping or vacuuming.
Individuals working in high-risk environments should employ appropriate personal protective equipment (PPE), including respirators with N95 filters or powered air-purifying respirators (PAPRs), disposable gloves, and protective clothing. When handling wild rodents for research or surveillance purposes, additional biosafety measures including biological safety cabinets and HEPA-filtered containment facilities are required.
Rodent surveillance programs monitor hantavirus prevalence in reservoir populations, providing early warning of increased transmission risk. Serological testing of rodent populations using ELISA assays and molecular detection by RT-PCR enable rapid assessment of virus circulation. Public health authorities use this data to issue advisories and guide community-level prevention efforts during high-risk periods.
View more Hantavirus ELISA Kits
Figure 3. Prevention strategies and biosafety measures for hantavirus exposure. (Oral et al., 2020)
References
| Target | Cat. No. | Product Name | Size | Species Reactivity | Application | Detection Sample | |
| Hantavirus | DEIABL10 | Mouse Anti-Hantavirus ELISA Kit | 48T 2 | Mouse | Qualitative | Serum | Inquiry |
| DEIA2203 | Human Hantavirus Hantaan ELISA Kit | 96T | Human | Qualitative | Serum | Inquiry | |
| DEIA-JY2451 | Mouse Hantavirus (HV) Antibody ELISA Kit | 96T | Mouse | Qualitative | Serum | Inquiry | |
| DEIA-JY2467 | Rat Hantavirus (HV) Antibody ELISA Kit | 96T | Rat | Qualitative | Serum | Inquiry | |
| DEIA2203L | Human Hantavirus Nucleoprotein (HVNP) IgG/IgM ELISA Kit | 96T | Human | Qualitative | Serum | Inquiry | |
| DEIA-NS2660 | Hantavirus IgG ELISA Kit | 96T | Human | Qualitative | Serum or plasma (citrate or heparin) | Inquiry | |
| DEIA-NS2661 | Hantavirus IgM ELISA Kit | 96T | Human | Qualitative | Serum or plasma (citrate or heparin) | Inquiry | |
| DEIA595 | Hantavirus Dobrava/Hantaan IgG/IgM ELISA Kit | 96T | Human | Qualitative | Human serum | Inquiry | |
| DEIA596 | Hantavirus (Puumala) IgG/IgM ELISA Kit | 96T | Human | Qualitative | Serum | Inquiry |
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