Enfermedad por coronavirus 2019 (COVID-19)

Dallas County Health and Human Services - 2377 N. Stemmons Freeway, Dallas, TX 75207
Telephone: 214-819-2000

Return to Main COVID-19 page.

Nuevo coronavirus del 2019 (COVID-19 por sus siglas en inglés)

What is a novel coronavirus?

A novel coronavirus is a new coronavirus that has not been previously identified. The virus causing coronavirus disease 2019 (COVID-19), is not that same as the coronaviruses that commonly circulate among humans and cause mild illness, like the common cold.

A diagnosis with coronavirus 229E, NL63, OC43, or HKU1 is not the same as a COVID-19 diagnosis. Patients with COVID-19 will be evaluated and cared for differently than patients with common coronavirus diagnosis.

How does the virus spread?

The new coronavirus seems to be spreading from person-to-person. Learn what is known about the spread of COVID-19.

What are the symptoms of COVID-19 infection?

Patients with confirmed COVID-19 have reportedly had mild to severe respiratory illness with symptoms of fever, cough, and/or shortness of breath.

At this time, CDC believes that symptoms of COVID-19 may appear in as few as 2 days or as long as 14 days after exposure. This is based on what has been seen previously as the incubation period of MERS coronaviruses.

Can someone who has had COVID-19 spread the illness to others?

The virus that causes COVID-19 is spreading from person-to-person. Someone who is actively sick with COVID-19 can spread the illness to others. That is why CDC recommends that these patients be isolated either in the hospital or at home (depending on how sick they are) until they are better and no longer pose a risk of infecting others.

How long someone is actively sick can vary so the decision on when to release someone from isolation is made on a case-by-case basis in consultation with doctors, infection prevention and control experts, and public health officials and involves considering specifics of each situation including disease severity, illness signs and symptoms, and results of laboratory testing for that patient.

Current CDC guidance for when it is OK to release someone from isolation is made on a case by case basis and includes meeting all of the following requirements:

  • The patient is free from fever without the use of fever-reducing medications.
  • The patient is no longer showing symptoms, including cough.
  • The patient has tested negative on at least two consecutive respiratory specimens collected at least 24 hours apart.

Someone that has been released from isolation is not considered to pose a risk of infection to others.

Can someone who has been quarantined for COVID-19 spread the illness to others?

Quarantine means the separating a person or group of people who have been exposed to a contagious disease but have not developed illness (symptoms) from others who have not been exposed in order to prevent the possible spread of that disease. Quarantine is usually established for the incubation period of the communicable disease, which is the span of time during which people have developed illness after exposure. For COVID-19, the period of quarantine is 14 days from the last date of exposure because 14 days is the longest incubation period seen for similar coronaviruses. Someone who has been released from COVID-19 quarantine is not considered a risk for spreading the virus to others because the have not developed illness during the incubation period.

How can I help protect myself from COVID-19?

Visit the CDC's COVID-19 Prevention and Treatment page to learn about how to protect yourself from respiratory illnesses, like COVID-19.

What should I do if I had close contact with someone has COVID-19?

There is information for people who have had close contact with a person confirmed to have, or being evaluated for, COVID-19 available online.

For more information, please see the CDC's Frequently Asked Questions and Answers
Source: Texas Department of State Health ServicesCenters for Disease Control and Prevention 
Please see the CDC COVID-19 Traveler Info Card here (also linked in Care Kit below).

To slow the spread of coronavirus disease 2019 (COVID-19) into the United States, the Texas Department of State Health Services (DSHS) and Centers for Disease Control and Prevention (CDC) are working with DCHHS to implement after-travel health precautions. Depending on your travel history, you will be asked to stay home for a period of 14 days from the time you left an areas with widespread or ongoing community spread (Level 3 Travel Health Notice).

Countries that have a Level 3 Travel Health Notice (widespread, ongoing transmission):

  • China
  • Iran
  • Italy
  • South Korea

Travelers arriving into the U.S. from the above countries will be asked to do the following:

Stay home for 14 days from the time you left an area with widespread, ongoing community spread (Level 3 Travel Health Notice countries) and practice social distancing.

Take these steps to monitor your health and practice social distancing:

  1. Take your temperature with a thermometer two times a day and monitor for fever. Also watch for cough or trouble breathing.
  2. Stay home and avoid contact with others. Do not go to work or school for this 14-day period. Discuss your work situation with your employer before returning to work.
  3. Do not take public transportation, taxis, or ride-shares during the time you are practicing social distancing.
  4. Avoid crowded places (such as shopping centers and movie theaters) and limit your activities in public.
  5. Keep your distance from others (about 6 feet or 2 meters).

If you get sick with fever (100.4°F/38°C or higher), cough, or have trouble breathing:

  • Seek medical care. Call ahead before you go to a doctor’s office or emergency room.
  • Tell your doctor about your recent travel and your symptoms.
  • Avoid contact with others.

If you need to seek medical care for other reasons, such as dialysis, call ahead to your doctor and tell them about your recent travel to an area with widespread or ongoing community spread of COVID-19.

Care Kit Materials for Home Monitoring

As of March 8, 2020, there are 35 U.S. states, including the District of Columbia, reporting cases of coronavirus disease 2019 (COVID-19). While there is still much to learn about the unfolding situation, preliminary information raises the concern about the immediate threat for COVID-19 for certain communities in the U.S. This is a rapidly evolving situation and the CDC, along with federal, state, and local partners, are working diligently to prepare communities for the potential of further spread in the U.S.

CDC recommends individuals and families follow everyday preventative measures, otherwise known as non-pharmaceutical interventions (NPI), as the frontline of defense against COVID-19 and other seasonal respiratory viruses:

  • Voluntary Home Isolation: Stay home when you are sick with respiratory disease symptoms. At the present time, these symptoms are more likely due to influenza or other respiratory viruses than to COVID-19-related virus.
  • Respiratory Etiquette: Cover coughs and sneezes with a tissue, then throw it in the trash can.
  • Hand Hygiene: Wash hands often with soap and water for at least 20 seconds; especially after going to the bathroom; before eating; and after blowing your nose, coughing, or sneezing.
  • If soap and water are not readily available, use an alcohol-based hand sanitizer with 60%-95% alcohol.
  • Environmental Health Action: Routinely clean frequently touched surfaces and objects

Routine use of these measures by individuals and their families will increase community resilience and readiness for responding to an outbreak.

(Source: COVID-19 Situation Summary (CDC))


  • El 31 de enero del 2020, el Departamento de Salud y Servicios Humanos de los EEUU declaró una emergencia de salud pública que especifica limitaciones de viaje y medidas de cuarentena.
  • El 30 de enero del 2020, la Organización Mundial de Salud (OMS) declaró que el brote de SARS-CoV-2 había sido declarada como una emergencia de salud pública de importancia internacional.

Hasta la fecha, no ha habido ningún caso confirmado de COVID-19 en el condado de Dallas. El departamento de salud del condado de Dallas (DCHHS por sus siglas en inglés) sigue trabajando de manera cercana con los CDC y con el departamento de salud estatal (Texas DSHS) para monitorear este brote de infecciones debidas al nuevo coronavirus del 2019. La infección se llama COVID-19, y es ocasionado por el coronavirus llamado SARS-CoV-2 que fue detectado por primera vez en Wuhan, China.

 ¿Qué es el SARS-CoV-2?

El nuevo coronavirus del 2019 (2019-nCoV por sus siglas en inglés) es un virus (específicamente, un coronavirus) que ha sido identificado como la causa de un brote de enfermedades respiratorias (COVID-19) detectado por primera vez en Wuhan, China. Al principio, la mayoría de pacientes asociados con el brote en Wuhan, China reportaron alguna conexión con un mercado grande donde se venden mariscos y animales, sugiriendo una propagación de animal-a-humano. Aun, sin embargo, la transmisión de humano-a-humano ha sido confirmada. Hasta la fecha, no es claro que tan fácil de puede propagar este virus entre la gente.

Los signos y síntomas de una infección con SARS-CoV-2 pueden incluir fiebre, tos, y dificultad para respirar. Dolor de garganta también ha sido reportado por unos pacientes. Este nuevo coronavirus potencialmente puede ocasionar una neumonía y hasta la muerte. Los factores de riesgo para una enfermedad severa no han sido reconocidos, pero se ha documentado que personas de la tercera edad y aquellas personas con afecciones crónicas pueden tener un riesgo incrementado. Las actualizaciones más recientes relacionadas a esta investigación están disponibles en la página de web de los CDC.

Guía para viajantes o personas con contacto cercano a un paciente con SARS-CoV-2 confirmado en laboratorio

Para implementación a partir del Lunes, 3 de febrero del 2020: Procedimientos de viaje nuevos fueron anunciados en la “proclamación presidencial sobre el nuevo coronavirus” para viajantes quienes hayan estado en China durante los últimos 14 días, incluyendo ciudadanos y residentes de los EEUU y otras personas que se les permite la entrada a los EEUU. A estas personas se les pedirá monitorear su salud tras partir de China, e incluye tomarse la temperatura con un termómetro dos veces diarias y revisarse por síntomas. Dependiente del historial de salud y de viaje, también se les pedirá practicar medidas de distanciamiento social (espacio personal) y se les pondría restricciones de movimiento por el rango de 14 días. (Fuente: Travelers From Countries with Widespread Sustained (Ongoing) Transmission Arriving in the United States, CDC)

Si usted ha viajado recientemente a China o ha tenido contacto con una persona con COVID-19 confirmada y empiezan a padecer de fiebre, tos, dificultad para respirar, haga lo siguiente:

  • Acuda a su médico o proveedor de salud inmediatamente; asegúrese llamar a la clínica u hospital antes de llegar. Avíseles de sus síntomas y de su historial de viaje (o contacto cercano con un caso confirmado de COVID-19, si aplicable). Siempre lleve puesta una mascarilla al salir de su casa. Imprima esta tarjeta.
  • Si no ha revisado por un proveedor de salud, quédese en casa y evite el contacto con otras personas.
  • Evite viajar en trasportes públicos (como el camión, metro, tren, o avión) hasta que deje de estar enfermo.
  • Cúbrase la nariz y la boca con un pañuelo o manga (no use las manos) al toser y estornudar.
  • Lávese las manos con agua y jabón por mínimo 20 segundos para evitar propagar el virus a otras personas. Si no hay agua y jabón disponibles, use un desinfectante para manos a base de alcohol.

Recursos adicionales

Como contactarse

  • Miembros del público en general pueden llamar el (214) 819-2004 entre las horas de 8:00AM y 4:00PM, de lunes a viernes.
  • Médicos y proveedores de salud pueden llamar al servicio de respuestas de 24 horas del DCHHS al 1-877-605-2660.
  • Miembros de la prensa pueden mandar un correo electrónico a PIO_DCHHS@dallascounty.org o llamar al 214-819-1929.