Date issued: 3 March 2021, Travel Health Advisory #17
As of 3 March 2021, there have been at least 128,301,662 total cases worldwide with 2,806,679 reported deaths; 390,026,186 total positive test results in the United States. Countries with the highest numbers of reported COVID-19 cases are the United States, Brazil, India, France and Russia. The World Health Organization (WHO) advised that if any traveler has symptoms suggestive of acute respiratory illness during their travel period or after returning, they should seek medical attention and highlight their recent travel to medical personnel.
The Pfizer-BioNTech, Moderna, and Johnson and Johnson’s Janssen COVID-19 vaccines are authorized and recommended for use in the United States. Studies show that COVID-19 vaccines are effective at keeping you from getting COVID-19 and will also help keep you from getting seriously ill even if you do get COVID-19. The COVID-19 vaccination works by teaching your immune system how to recognize the virus that causes COVID-19, and this protects you from getting sick with COVID-19. Contact your local health department to learn how and when you can get vaccinated.
The CDC and the WHO published health resources with advice for daily life. These include recommendations for school and work, going out, events and gatherings, travel, recreation and transportation to help protect yourself, reduce exposure and limit community spread:
On 28 January 2021, the U.S. Department of State issued COVID-19 testing required to advise U.S. citizens and permanent residents two years of age and over that a negative COVID-19 test taken within three days of departure will need to be presented prior to boarding when entering the United States. COVID-19 country specific travel information from the U.S. Department of State may be found at https://travel.state.gov/content/travel/en/traveladvisories/COVID-19-Country-Specific-Information.html.
The CDC issued information for traveling during COVID-19 containing resources on travel risks, international travel, travel health notices, air travel and cruise ship travel. These include taking the following steps to reduce exposure and slow community spread:
A new outbreak of pneumonia was first seen in early December 2019 in Wuhan, Hubei Province, China. On 7 January 2020, this outbreak was identified as being caused by novel Coronavirus (2019-nCoV). On 11 February 2020, the World Health Organization (WHO) announced an official name for the disease that is causing the coronavirus disease, COVID-19.
Coronavirus refers to a family of respiratory viruses that can range from the common cold to a more severe disease, such as Middle East Respiratory Syndrome (MERS-CoV) and Severe Acute Respiratory Syndrome (SARS-CoV).
The first Coronavirus was isolated in birds in 1937 and the first Human Coronavirus (HCoV) was identified in the nasal swab of patients with the common cold in the mid-1960s. Until now, seven strains of Coronavirus infecting humans have been identified. The newest strain, known as novel Coronavirus (2019-nCoV), was identified in China on 7 January 2020.
The virus is mainly zoonotic, which means that the disease normally exists amongst animals, but some of the viruses have the ability to spread to humans in what is known as a spillover event.
There is limited research on the exact mode of transmission of COVID-19, but the most likely route for a human-to-human transmission is via contact with an infected person’s secretions.
Depending on the virulence of the Human Coronaviruses, the most common transmission from an infected person to others would be through the air (coughing and sneezing), close personal contact (touching or shaking hands), touching an object or surface that an infected person has touched and then touching your mouth, nose, or eyes before washing your hands and, in some rare cases, via fecal contamination.
The novel Coronavirus was initially linked to the Wuhan food market, as many of the initial patients were customers of the market where a positive sample was isolated.
The common Human Coronaviruses mainly present as mild to moderate upper respiratory tract illnesses similar to the common cold. Symptoms may include runny nose, cough, fever, sore throat, headache, loss of taste or smell, shortness of breath, and may progress to pneumonia or bronchitis with shortness of breath and easy fatigability.
Those at high risk of developing complications include those with underlying chronic conditions, such as respiratory and cardiac diseases, immunocompromised individuals, diabetics, as well as those in extreme age groups (e.g. infants or the elderly). In addition, pregnant women are also at higher risk if infected by COVID-19.
There are several types of tests for this virus available. This would include serum PCR assay, nasal swab, broncho-alveolar lavage, sputum and sometimes stool samples.
The above measures are effective against all infectious agents, including Influenza A and B (“the flu”), which sickens millions of individual worldwide and kills thousands each year.
The CDC issued guidance after returning home from travel. These include taking the following precautions and steps to reduce exposure and limit transmission:
If you develop a fever (100.4F/38C), cough or have difficulty breathing call your health department for advice before seeking care. If you can’t reach your health department, call ahead before going to a doctor’s office or emergency room.
WHO has advised all worldwide healthcare personnel and airport security personnel to be extra vigilant and enact enhancement of surveillance at airports for early detection and prevention of spread of the disease.
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AT-12280-20 (03/2021 R17)