Questions

The "Go for Zero" policy of Australia helped the country to bring down its COVID-19 cases. The Go for zero policy of Australia was proposed by a non-profit think tank Grattan Institute that advises the government. Under the policy besides expanding the testing of covid-19, Australia also increased contact tracing and mandatory isolation.

Leukocyte, commonly known as a white blood cell (WBC), is a major component in protecting the body against invading microorganisms and body cells with mutated DNA, and they clean up debris. 

B Lymphocyte also called as B-Cells or plasma cells produces the antibodies or immunoglobulins that bind to specific foreign or abnormal components of plasma membranes. This is also referred to as humoral (body fluid) immunity.