Antigens are proteins on the that identify the cell as self or foreign. An antibody is a protein that can bind to a specific so that the immune system can remove it more easily.
A lymphocyte is a type of white blood cell important for fighting viruses and cancers and for creating .
Antibody binding is the process by which an antibody identifies and attaches to a specific .

Coronavirus disease (COVID-19) technical guidance: Laboratory testing for ... to laboratories and stakeholders involved in laboratory testing of COVID-19 virus. ... Diagnostic testing for COVID-19 is critical to tracking the virus, understanding ... 2. WHO interim guidance for laboratory biosafety related to COVID-19 virus.

Explanation:

No they can't be cured since they aren't just a regular sickness just like the flu can't be cured and the corona virus can't be cured.

Hope this helps! :)