Rotavirus Research & Diagnostic ELISA Solutions

Rotavirus is an important pathogen causing diarrhea in humans, mammals, and birds, first discovered by Australian scholar Bishop and colleagues in 1973. The virus particles are spherical in shape, with a diameter of 60-80nm, without an envelope, and have a double layered capsid. The shell particles of the underwear shell are arranged radially along the edge of the virus body, resembling spokes of a wheel, hence it is named "rotavirus". Based on the immunogenicity of the viral structural protein VP6, rotavirus is divided into seven groups A to G. Among them, Group A rotavirus is the most common pathogen causing severe diarrhea in infants and young children worldwide, and is also one of the main causes of infant mortality; Group B rotavirus causes diarrhea in adults with a low mortality rate.

Structure of Rotavirus

The virus particle is spherical, with a diameter of 60~80nm, no envelope, double-layer capsid, and icosahedral symmetry. The shell particles of the inner capsid are arranged radially along the edge of the virus body, like wheel spokes. Rotavirus has two forms: double-shell particles and single-shell particles.

Figure 1. Structure of Rotavirus.

• Outer: The outer capsid is composed of VP4 (protease-sensitive protein) and VP7 (glycoprotein). These proteins are the major neutralizing antigens of the virus and define its G (VP7) and P (VP4) genotype. VP4 is cleaved into VP5 and VP8 subunits and is the main factor for the virus to enter the host cell.
• Middle: The middle capsid is made up of VP6 protein. It defines the group (A, B, C, etc.) and subgroup (type I or type II) classification of the virus.
• Core: The core layer is made up of VP1 (RNA polymerase), VP2 (RNA binding protein) and VP3 (guanylate transferase).

Methods of Influenza Virus Detection

Application of Rotavirus ELISA in Clinical and Research

ELISA is widely used for clinical diagnosis and research of rotavirus antigens. In clinical settings, ELISA kits are used to quickly identify rotavirus infection in patients with symptoms of gastroenteritis. These kits are designed to be user-friendly, portable, and reliable, making them suitable for environments with limited resources. In the study, ELISA was used to investigate the epidemiology of rotavirus, monitor vaccine efficacy, and investigate immune responses to infection. For example, the study used ELISA to detect rotavirus antigen in newborn fecal samples and evaluate the immune response of vaccinated individuals. The development of high-sensitivity ELISA kits also enables researchers to detect low levels of rotavirus antigen, which is particularly useful in early infections or asymptomatic carriers.

• Clinical diagnosis: In hospitals and clinics, ELISA kits can be used to quickly rule in flu in patients with respiratory symptoms, so that antiviral drugs can be given in time, and unnecessary use of antibiotics can be avoided. In the event of an outbreak of the epidemic, when time is of the essence for the rapid diversion of medical resources, ELISA also shows its value.
• Epidemic monitoring: Public health institutions use ELISA to monitor influenza activity, track the spread of strains, and quickly identify the epidemic hotspot. By detecting viral antigens in community samples, public health officials can take targeted actions (such as school closures, public awareness campaigns) to help slow the spread.

ELISA Kits

Antibodies

Antigens