**5. Conclusion**

Glycosylation could be a common modification of proteins and lipids that involves non-template dynamic and complex processes. Glycans have multiple crucial roles in cellular responses to environmental stimuli likewise as cellular growth and differentiation; specific changes in glycan composition are directly joined to several diseases. Technological advances are commencing to overcome many of the challenges display by the complexities of glycoconjugates, improving our understanding of the physiological and pathological processes that are regulated by glycans.

The application of lectins to unravel differing types of issues involved in viral infections like COVID-19 depends upon the presence of glycoproteins within the viral envelope. Within the therapeutic space, the lectins can be thought-about leading molecules for the event of the latest antiviral approaches because of their ability to inhibit microorganism entry within the host cell. The advances in glycoprotein style methods are necessary to spice up the clinical application of those agents thought-about for the treatment of SARS-CoV-2 and alternative microorganism infections. The immunomodulatory action of some lectins may also be exploited to boost the effectiveness of immunization schemes for microorganism infections.

On the opposite hand, lectin–carbohydrates interactions will be accustomed style devices for diagnosing targeting microorganism glycoproteins or host glycoproteins alterations throughout microorganism infections. This kind of apparatuses hold the promise of producing sensitive, quick, and cost-effective identification of infected people and are of important would like throughout the pandemic things, as obligatory for COVID-19.

*Glycan and Its Role in Combating COVID-19 DOI: http://dx.doi.org/10.5772/intechopen.97240*
