A Systemic Review of Pathological Findings in COVID-19 and Its Mechanism of Disease

The Severe Acute Respiratory Syndrome (SARS) coronavirus 2 (SARS-CoV2) has spread worldwide at a rapidly alarming pace and has resulted in the coronavirus disease 2019 (COVID-19) pandemic. The virus has more intensive and prolonged standing effects in the host body post-infection than the other related groups of viruses. The disease has caused an unforeseen need for the availability of intensive support because of the resulting critical respiratory distress and consequent multi-organ failure. What starts as an elegant fever with cough and headache, with body pain, runny nose, sore throat, quickly develops into loss of perception of taste and smell, with nausea, diarrhea, troubled breathing, chills; and finally results into grievous damage to the vital organs of the body, such as heart, lungs, liver, kidneys, blood vessels, and even brain, necessitating the need of urgent and competent availability of critical care infrastructure. It is now the disease with the highest number of affected individuals recorded in the modern era. And, not only does the infection of Covid inflict highly significant morbidity and mortality rates amongst the population, but there have also been multiple and significant strains to the overburdened health care system and also, massively on the economy.

Here in this article, our focus will primarily be upon the systemic pathology in the various organ systems and how the coronavirus has been affected. We shall discuss the Respiratory System, the Cardio-Vascular System, the Renal System, Central Nervous System, and the pathophysiology involved herewith after covid infection.