In contrast to existing research that used ground-based observations, in this research we used space-borne observations to study global air quality change during COVID-19 pandemic in 20 countries. It is observed that during lockdown, PM2.5 has reduced in the most of the countries by 56% in 2020 compared to the previous year, whereas, Ghana and Russia show an increasing pattern. It is observed that NO 2 has dropped in most of the countries by 3% to 31%, whereas UK and South Africa exhibit an increasing trend. Although spatial variability, low spatial resolution, and mixed pixel impurity may obscure the observation, but the study suggests a space-borne approach can be useful for investigating change in air quality to provide a general insight during COVID-19 pandemic. Our space-borne observations show an improvement in air quality by considerable drop in contaminants in the air in most of the countries except Russia and Ghana during COVID lockdown.

Covid-19 associated several neurological manifestation in the form of Post-infectious transverse myelitis(TM) and para-infectious TM has been reported. A 54 years old female patient presented to us with acute retention of urine and upper motor neuron type of bilateral lower limb weakness in shock stage, after 12 days of covid-19 infection. MRI (3T) brain and spine showed no abnormality and Nerve conduction study showed acquired motor axonal polyradiculoneuropathy in bilateral lower limbs. We herein present an index case of MRI-negative myeloradiculoneuropathy following covid-19 infection.

No abstract

No abstract

No abstract