Virus 🦠19

Virus-19, commonly known as **COVID-19**, is a highly contagious virus caused by the novel coronavirus **SARS-CoV-2**, first identified in Wuhan, China, in late 2019. The virus primarily affects the **respiratory system**, causing symptoms that range from mild, such as fever, cough, and fatigue, to severe, including difficulty breathing and pneumonia. In some cases, it can lead to critical conditions like organ failure or even death, particularly in older adults and individuals with underlying health conditions like diabetes, heart disease, or weakened immune systems. COVID-19 spreads mainly through **respiratory droplets** when an infected person coughs, sneezes, or talks, and can also be transmitted via surfaces. Asymptomatic carriers, those who do not exhibit symptoms, can still spread the virus, making it challenging to control outbreaks. To curb the spread, global health authorities recommend preventive measures such as **wearing masks**, **social distancing**, **frequent hand washing**, and vaccination. Vaccines developed in record time, like those from Pfizer-BioNTech, Moderna, and AstraZeneca, have been effective in reducing severe illness and death from the virus. The impact of COVID-19 extends beyond health, leading to global disruptions in **economies, education, and daily life**. Lockdowns, travel restrictions, and social distancing measures were imposed worldwide to slow the spread. Despite ongoing vaccination campaigns and treatments, COVID-19 continues to evolve, with new variants like Delta and Omicron emerging, necessitating continued vigilance and adaptation in public health strategies.