Virus preservation liquid is an important reagent used to preserve the activity and integrity of viruses after virus samples are collected. It has a wide range of specific applications in multiple fields. The main aspects are as follows:

Detection of Respiratory Viruses: During the prevalence of respiratory viruses such as influenza viruses and the novel coronavirus, it is used to collect samples like nasopharyngeal swabs and oropharyngeal swabs from patients. The preservation liquid can maintain the activity of viruses after sample collection, ensuring the accuracy of subsequent diagnostic methods such as nucleic acid testing and antigen testing. It helps to detect patients infected with viruses in a timely manner and provides a basis for epidemic prevention and control as well as clinical treatment.
Detection of Enteric Viruses: For diseases caused by enteric viruses, such as hand, foot and mouth disease, virus preservation liquid can be used to collect samples such as feces, anal swabs or vesicle fluid. It facilitates the subsequent isolation, identification and detection of enteric viruses and assists clinical doctors in making accurate diagnoses and evaluating the condition of diseases.

Monitoring of Infectious Diseases: In the disease monitoring network, samples from specific populations or the environment, such as patients in the fever clinics of hospitals and air samples in public places, are regularly collected and preserved with virus preservation liquid before being tested. This helps to detect new virus strains or virus mutations in a timely manner and provides data support for the early warning of infectious diseases and the adjustment of prevention and control strategies.
Tracing the Origin of Epidemics: When an epidemic breaks out, samples from patients, close contacts and possible sources of infection are collected and preserved. Virus preservation liquid is used to maintain the activity of viruses for subsequent virus gene sequencing and origin-tracing analysis. This determines the transmission route and source of the virus and provides a scientific basis for formulating epidemic prevention and control measures.

Basic Research in Virology: In basic research such as virus isolation, cultivation and identification, virus preservation liquid can provide researchers with high-quality virus samples. The preservation liquid enables viruses to maintain their activity in the in vitro environment, facilitating work such as subculture of viruses, research on virus characteristics and research on the interaction between viruses and host cells in the laboratory.
Vaccine Research and Development: During the process of vaccine research and development, active virus samples are needed for experiments such as immunogenicity research and vaccine efficacy evaluation. Virus preservation liquid can ensure the stable quality of virus samples used in vaccine research and development and provide reliable experimental materials for the research and development and optimization of vaccines.

Screening of Incoming Passengers: When conducting virus testing on incoming passengers, virus preservation liquid is used to collect samples such as their pharyngeal swabs to quickly detect whether they carry specific viruses, preventing the cross-border transmission of viruses and ensuring domestic public health security.
Detection of Imported Cold Chain Foods: It is used to collect virus samples on the surfaces and packaging of imported cold chain foods, ensuring the activity of viruses during transportation and testing, so as to detect possible virus contamination in a timely manner and block the transmission route of viruses through cold chain foods.