Inoculation means vaccination, pandemic means widespread, and treatment means medication.
The word 'inoculation' in the sentence means vaccination. Inoculation is the process of introducing a small amount of a disease-causing agent into the body to help develop immunity against it. In the context of the sentence, inoculation is mentioned as one of the effective ways to prevent the spread of COVID-19.
The word 'pandemic' in the sentence means widespread. A pandemic refers to an outbreak of a disease that affects a large geographic area, often globally. In the given sentence, the COVID-19 outbreak has been declared a pandemic by the World Health Organization, indicating that it has spread widely.
The word 'treatment' in the sentence means medication. In the context of the sentence, medical researchers are still finding the best medication or therapy for cancer. While some doctors also suggest a plant-based diet as a complementary treatment, the word 'treatment' primarily refers to medication or medical interventions.