Novel coronavirus which has been invented since a year has wreaking havoc all over the world by infecting people with COVID-19 or coronavirus disease 2019. The COVID-19 is extremely virulent and can spread extremely fast. Bodily secretions, sneeze, cough and breath can give easy way to the virus to transmit from host to the primary contact. The incubation period lasts from two days to fourteen days. Symptoms includes. Fever, cough, fatigue, shortness of breath, body aches, headaches, sore throat, runny nose, loss of smell and taste, diarrhea, vomiting and many more. The global nature of the disease has provided vast scope for study especially symptoms as they vary greatly and with different combination. Entry points for the virus to enter into the body are eyes, nose, mouth etc. Respiratory systems are primarily the first affected. The containment of COVID-19 is primarily based on test, trace, treat model whose first element is test. Various tests are approved by concerned governing and health authorities to identify the patients infected of COVID-19. The test which is considered as golden standard for the diagnosis of the COVID-19 is Reverse Transcript Polymerase Chain Reaction (RT-PCR) test which works on the principle of ribonucleic acid (RNA) molecule amplification of coronavirus strain. Same test was also used in previous outbreak of severe acute respiratory syndrome (SARS) in 2002. A nasopharyngeal sample which is secretion present in the respiratory system or saliva and stool sample may collected to test it for the infection.More study is needed on different aspects of containing the coronavirus spread and limit transmission to halt the pandemic.