NAME: Rhinovirus
SYNONYM OR CROSS REFERENCE: Acute viral rhinitis, acute coryza, common cold virus
CHARACTERISTICS: Picornaviridae; icosahedral, about 27 nm diameter, ss positive sense RNA, non-lipid enveloped capsid
PATHOGENICITY: Most frequent cause of the common cold responsible for 30-50% of cases; acute infection of the upper respiratory tract; characterized by coryza, sneezing, lacrimation, irritated nasopharynx, headache, sore throat, chilliness and malaise lasting 2-7 days; little or no fever; can be accompanied by laryngitis, tracheitis and bronchitis; secondary bacterial infection may produce acute otis media, sinusitis or pneumonitis
EPIDEMIOLOGY: Worldwide; occurs mostly in the early fall and winter; over 100 recognized serotypes; incidence highest in children < 5 years
HOST RANGE: Humans
INFECTIOUS DOSE: Ranges from 0.032 to 0.4 TCID50 when given as nasal spray
MODE OF TRANSMISSION: Direct contact or inhalation of infectious airborne droplets; indirect spread by contaminated hands and freshly soiled articles
INCUBATION PERIOD: From 2-4 days
COMMUNICABILITY: Nasal discharges taken 24 hours before and 5 days after onset have been shown to be infectious
RESERVOIR: Humans
ZOONOSIS: None
VECTORS: None
DRUG SUSCEPTIBILITY: No specific antivirals although sensitive to alpha-2 interferon
SUSCEPTIBILITY TO DISINFECTANTS: Susceptible to l.0% sodium hypochlorite, tincture of iodine, phenol-alcohol disinfectant, 2% glutaraldehyde; resistant to organic solvents, ethanol
PHYSICAL INACTIVATION: Inactivates at pH < 3.6
SURVIVAL OUTSIDE HOST: Relatively stable at 24-35° C; survives for days on environmental surfaces; survives on the human skin up to 3 hours; survival in aerosols enhanced by low temperature and high relative humidity
SURVEILLANCE: Identification by tissue culture
FIRST AID/TREATMENT: Rest, hydration, nasal decongestant and saline gargles
IMMUNIZATION: None
PROPHYLAXIS: Antiviral agents have proven effective in vitro, but with little effect in clinical trials
LABORATORY-ACQUIRED INFECTIONS: None reported although probably quite common
SOURCES/SPECIMENS: Nose and throat secretions
PRIMARY HAZARDS: Droplet exposure of mucous membranes; indirect via hands
SPECIAL HAZARDS: None
CONTAINMENT REQUIREMENTS: Biosafety level 2 practices and containment for activities utilizing infectious body fluids, tissues and cultures
PROTECTIVE CLOTHING: Laboratory coat; gloves when skin contact with infectious materials is unavoidable
OTHER PRECAUTIONS: None
SPILLS: Allow aerosols to settle; wearing protective clothing gently cover spill with absorbent paper towel and apply 1% sodium hypochlorite starting at perimeter and working towards the center; allow sufficient contact time (30 min) before clean up
DISPOSAL: Decontaminate all wastes before disposal; steam sterilization, chemical disinfection, incineration
STORAGE: In sealed containers that are appropriately labelled
Date prepared: February, 2001
Prepared by: Office of Laboratory Security, PHAC
Although the information, opinions and recommendations contained in this Material Safety Data Sheet are compiled from sources believed to be reliable, we accept no responsibility for the accuracy, sufficiency, or reliability or for any loss or injury resulting from the use of the information. Newly discovered hazards are frequent and this information may not be completely up to date.
Copyright ©
Health Canada, 2001
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