Explanation

• A study by researchers at Kyoto Prefectural University of Medicine in Japan found that SARS-CoV-2 can remain active on human skin for about 9.04 hours.
• This suggests the virus survives longer on skin, increasing the importance of frequent hand hygiene to reduce infection risk.

Last verified on 19-04-2026

Explanation

• The first human cases of COVID-19 were reported in December 2019 in Wuhan City, China.
• The disease is caused by a novel coronavirus, later named SARS-CoV-2.
• COVID-19 quickly became a global pandemic affecting health, travel, and economies worldwide.
• Wuhan is a major transport and industrial hub in Hubei Province, China.

Last verified on 17-03-2026

Explanation

• COVID-19 was declared pandemic by WHO on March 11, 2020. 
• WHO stands for: World Health Organization
• COVID caused by: SARS-CoV-2
• COVID-19 acronym: Coronavirus disease 2019
• Global Pandemic means: عالمی وباء

Last verified on 16-03-2026

Explanation

• First detected: October 2020, India
• WHO designation: Delta variant (Variant of Concern)
• Contagion rate: Higher than original SARS-CoV-2
• Vaccines effective: Pfizer-BioNTech, Moderna, AstraZeneca
• Global spread: Over 100 countries by mid-2021

Last verified on 15-03-2026

Explanation

The first COVID-19 case was reported in Wuhan, a city in Hubei province, China.

It emerged in December 2019, likely linked to a seafood market.