Low-cost technology for COVID-19 infection detection through smell loss test: An overview.

Corona virus (COVID-19) infection has been growing as a biggest threat to human society. World Health Organization (WHO) has already declared it as a pandemic for the whole world, with nearly six million positive cases. Highly contagious nature of the virus has challenged the medical facilities of all the developed and developing country health system. Early identification of the infection is very important to provide medical facilities and cease the chain of infection to new persons. The symptoms such as fever, dry cough, breathing issues generally show in patients not before 5-7 days. However, the patients feel the loss of smell or taste (anosmia) as early as second day onwards due to the presence of virus in nose and throat. Low-cost techniques such as SniffIn-sticks ® Smell Test and UPSIT etc. can be used to test anosmia along with medically approved olfactory test leading to identification of COVID-19 infections. With leading researchers findings anosmia test will be effective in breaking the chain infection of COVID-19 virus. In the exit ports, anosmia test kits may be added to thermal testing to identify the infected patients with low symptoms. Additionally, home test kits may be developed at low cost and supplied for large scale testing of the infection.