COVID-19 is a highly contagious respiratory illness caused by the SARS-CoV-2 virus. It primarily affects the lungs but can impact multiple organ systems, varying from mild to severe globally.
COVID-19 is caused by the SARS-CoV-2 virus that emerged in late 2019. While most people experience mild to moderate respiratory illness, it can cause severe disease and death, particularly in older adults and those with underlying health conditions. The virus continues to evolve, producing new variants that can affect transmissibility, severity, and vaccine effectiveness.
COVID-19 spreads primarily through respiratory droplets and aerosols when an infected person coughs, sneezes, talks, or breathes. The virus can also spread by touching surfaces contaminated with the virus and then touching the face. Transmission can occur from people who are asymptomatic or pre-symptomatic.
Período de Contagio: 2 days before symptoms appear to 10+ days after symptom onset
6 countries with reported activity. Updated from real-time surveillance data.
1 state with reported activity. Click a state for detailed surveillance.
Inteligencia en tiempo real de monitoreo global de salud y vigilancia impulsada por IA
Fuentes de datos: BEACON, ProMED, OMS, CDC y más de 50 agencias nacionales de salud
✓ Datos en vivo actualizados en tiempo real desde fuentes de salud globales
Doctors in the UAE are reporting a second peak in flu season, with clinics and hospitals seeing a rise in patients, particularly among families, older adults, and young children. Flu cases are increasing across the region, prompting warnings for vaccination.
📊 69 news sources reporting on this story.
First reported: 2026-02-03
The Finland women's hockey team's opening game against Canada was postponed due to a stomach virus that depleted their roster. This indicates a localized outbreak within the team, impacting their ability to compete.
📊 86 news sources reporting on this story.
First reported: 2026-02-05
The first cases were detected in Wuhan in China in late 2019.
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Summary is AI-generated, newsroom-reviewed
World Health Organization urges US to share Covid-19 origins intelligence despite withdrawal
Covid-19 caused 20 million deaths and major global economic and health disruptions
US officially supports theory of virus lab leak in Wuhan but withheld related intelligence
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Geneva:
The World Health Organization o
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Why it matters: Some medical experts warn that the U.S. will miss out on promising new vaccines if it does not embrace the technology, which powered the COVID-19 shots and could be adapted to target other diseases, including cancer.
Driving the news: The FDA's decision, which the company disclosed on Tuesday, comes after Health and Human Services last year canceled nearly $500 million in grants for developing new mRNA vaccines.
📰 75 news sources reporting on this story.
By Dennis Thompson HealthDay ReporterTHURSDAY, Feb. 12, 2026 (HealthDay News) -- Receiving the COVID-19 vaccine during pregnancy is not linked to any risk of autism or other brain development problems in children, a new study says.
Researchers found no ties between mRNA COVID vaccines and child developmental issues, according to findings presented Wednesday at the Society for Maternal-Fetal Medicine's annual pregnancy meeting in Las Vegas.
"Neurodevelopment outcomes in children born to mothers
📰 15 news sources reporting on this story.
Your winter flu shot may soon be recommended by your doctor based on independent medical advice rather rather than the federal government.
For decades, the CDC's expert panel, the Advisory Committee on Immunization Practices (ACIP), has been recommending who should receive the annual shots against respiratory viruses the flu, Covid and respiratory syncytial virus (RSV).
But now the American Medical Association (AMA), the largest physicians' organization in the US, has launched its own independe
Synopsis: On Wednesdays, The Straits Times takes a hard look at Singapore's social issues of the day with guests.
Temporary government handouts like the CDC vouchers were meant to cushion the impact of Covid-19 and soaring inflation due to supply shocks that were caused by global events like the war in Ukraine.
But with inflation cooling to trend levels, can Singaporeans wean off the 'free money' reliance from CDC vouchers that were originally meant to be temporary?
In this episode - which com
📰 15 news sources reporting on this story.
An inquiry into allegations of professional misconduct by a Dublin GP during the Covid-19 pandemic has resumed.
Dr Marcus de Brun is accused of ten counts of professional misconduct including alleged criticism of public health guidelines, lockdowns and the wearing of facemasks and Covid-19 vaccines.
He had previously described the use of Covid-19 vaccines in children as a "crime against humanity".
The allegations also relate to comments he made at a rally in 2020 when he was accused of failing
A new study found no link between coronavirus vaccine and reduced female fertility.
Researchers at Linköping University in Sweden analysed 60,000 women aged between 18 and 45 in Region Jönköping County.
Of this cohort, 75 per cent were vaccinated once or more against Covid-19 between 2021 and 2024.
The researchers used data on childbirths, vaccinations, miscarriages and deaths from healthcare records.
When they compared childbirths and miscarriages between vaccinated and unvaccinated women
📰 15 news sources reporting on this story.
Rastree COVID-19 y más de 200 otras enfermedades con alertas personalizadas
Información confiable de las principales organizaciones de salud
Orientación oficial de los Centros para el Control y la Prevención de Enfermedades de EE. UU.
Ver Recursos del CDC →Vigilancia global de enfermedades y directrices de la Organización Mundial de la Salud
Ver Recursos de la OMS →La información sobre enfermedades en Virus Watcher es revisada por nuestro Epidemiólogo Jefe, ex analista principal del CDC para el pronóstico FluSight. Los datos de brotes se agregan de fuentes verificadas incluyendo BEACON, ProMED, OMS, CDC y más de 50 agencias nacionales de salud. Esta información es con fines educativos y no debe reemplazar el asesoramiento médico profesional.
Última revisión: 2026-06-29
Preguntas frecuentes sobre COVID-19 respondidas por nuestro equipo de epidemiología
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