COVID-19 Guidebook Second Edition

COVID-19 is an infectious disease caused by the coronavirus SARS-CoV-2, first identified in December 2019 in Wuhan, China, and quickly spreading globally. It primarily spreads through respiratory droplets and affects the respiratory system, with symptoms ranging from mild (fever, cough, fatigue) to severe (difficulty breathing, chest pain). Preventative measures include vaccination, wearing masks, regular hand washing, physical distancing, and ensuring good ventilation. The pandemic has led to significant public health measures, economic disruptions, and changes in daily life, emphasizing the importance of adhering to health guidelines from authorities like the WHO and CDC.