# COVID-19 disease overview

> Live situation record from CLSTR: https://clstr.news/situations/20260803-covid-19-disease-overview
> Updated: 2026-08-03T14:15:28.000Z. Sources: 4. Developments: 2.

The first snapshot provides a comprehensive description of COVID‑19, outlining its origin in early 2020, typical symptoms, severity distribution, risk factors for older adults, the possibility of long‑COVID, transmission routes, diagnostic methods, approved vaccines, and recommended public‑health measures.

The second snapshot, dated a few weeks later, repeats the same core information with only minor wording changes and adds Brazil and Argentina to the list of countries referenced. No new developments or policy changes are reported, indicating that the overall portrayal of the disease remains consistent.

Together, the snapshots illustrate an ongoing effort to maintain a standard factual overview of COVID‑19 for a global audience, emphasizing the disease’s characteristics and the continued use of vaccination and mitigation strategies.

## Timeline

### 2026-08-03: COVID-19 disease overview: symptoms, transmission and vaccines

COVID-19, caused by SARS‑CoV‑2, spreads via respiratory droplets, causing fever, cough and loss of taste or smell; most cases are mild, 14% severe, 5% critical, with vaccines and testing widely deployed.

4 sources. https://clstr.news/cluster/covid-19-disease-overview-symptoms-transmission-and-vaccines

### 2026-07-22: COVID-19 disease overview and key facts

COVID-19, caused by SARS‑CoV‑2, produces a range of symptoms from mild to severe, spreads via droplets/aerosols, and is mitigated by vaccines and public health measures.

11 sources. https://clstr.news/cluster/covid-19-disease-overview-and-key-facts

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Cite as: COVID-19 disease overview. CLSTR, https://clstr.news/situations/20260803-covid-19-disease-overview