A structured guide to the outbreak timeline, symptoms, testing, prevention, vaccines, treatment, Long COVID and current developments.
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COVID-19 symptoms overlap with many respiratory infections. This guide explains warning signs, when early clinical contact matters, and how to reduce exposure to others while unwell.
Pregnant people should seek timely individual advice for fever, cough or breathing difficulty because infection can be associated with more severe outcomes in some cases.
Older age, immune suppression and some chronic conditions can raise the risk of severe illness. Early clinical contact allows treatment options to be assessed in time.
Respiratory symptoms overlap heavily. Symptoms alone cannot reliably distinguish COVID-19, influenza and a common cold.
Better ventilation reduces the build-up of shared indoor air. Practical steps for homes, workplaces, shops and classrooms.
Surveillance counts show cases captured by a reporting system, not every infection. Trends, severity and reporting dates matter.
Long COVID can affect different body systems and symptoms may fluctuate. Assessment should also consider other possible causes.
Vaccines continue to aim primarily at reducing severe illness and death. The likely benefit varies by age, immune status and underlying conditions.
Many people with non-severe illness need supportive care, but people at higher risk may benefit from antivirals that need to be started early.