Atlanta-based Delta Airlines, Inc. CEO Ed Bastian recently wrote there should be “zero tolerance” for any behavior that affects flight safety, according to the AP.
Delta confirmed on February 5, 2022, it has about 1,900 people on its  “no-fly” list for refusing to comply with face masking requirements.

According to the World Health Organization (WHO), vector-borne diseases account for more than 17% of all infectious diseases, leading to more than 700,000 deaths annually.
And mosquitoes, ticks, and fleas are among the arthropods responsible for transmitting many of the bacteria, viruses, and parasites that cause most vectorborne diseases.
The February 2022’s Emerging Infectious Disease Volume 28, Number 2 cover picture features a collage of images arrayed like mug shots for a number of these creatures responsible for many vector-borne diseases across the globe.

The U.S Department of State issued various high-level travel advisories on January 18, 2022, for several Caribbean countries.
These countries include but are not limited to the following: Bermuda, Jamaica, Saint Kitts/Nevis, Saint Lucia, and Saint Maarten.
These Level 4 ‘Do Not Travel’ Advisories are focused on the ongoing COVID-19 pandemic and the latest SARS-CoV-2 virus variant known as Omicron.
Additionally, the State Department issued Level 3 ‘Reconsider Travel’ Advisories for countries such as Fiji, French West Indies, and Costa Rica.

The U.S. Department of State today issued a Reconsider Travel Advisory for the People’s Republic of China (PRC) and the Hong Kong Special Administrative Region (SAR) due to arbitrary enforcement of local laws.
With the Winter Olympics and Paralympics 2022 scheduled to start in early February, this State Department Advisory presents various challenges for international travelers.

The U.S. Department of State today issued a Reconsider Travel Advisory for the People’s Republic of China (PRC) and the Hong Kong Special Administrative Region (SAR) due to COVID-19 health risks and local laws.
With the Winter Olympics and Paralympics 2022 scheduled to start in early February, this State Department Advisory presents various challenges for international travelers.

A Viewpoint published by the JAMA Network on December 15, 2021, highlights how dengue disease has become an increasing risk in various countries.
Furthermore, as the Aedes species mosquito vector reaches into new areas, the risk for large outbreaks in U.S. territories and gateway states increases daily as international travelers return from endemic regions. 
These researchers say, ‘Clinicians should become familiar with practical dengue prevention tools such as vaccines.’

The U.S. Centers for Disease Control and Prevention (CDC) Director Rochelle Walensky recently confirmed the agency is ramping up traveler testing and surveillance at four key U.S airports.
Under the extended CDC program, any traveler arriving at John F. Kennedy International, Liberty International, San Francisco International, and Hartsfield-Jackson International airports are being monitored for SARS-CoV-2 virus infections, including the new Omicron variant.

The Centers for Disease Control and Prevention (CDC) announced today the Global Testing Order had been shortened the required testing timeline for all international air travelers visiting the U.S.
Effective on December 6, 2021, prospective visitors must from any foreign country complete an approved COVID-19 test one day before departure to the U.S. 
This revision strengthens already robust protocols for international travel, including requirements for foreign travelers to be fully vaccinated.

The World Health Organization (WHO) confirmed today an increasing number of countries are introducing temporary travel measures, including temporarily prohibiting the arrival of international travelers from South African countries and others.
These travel bans are related to the variant of concern (VOC) named Omicron.
The WHO calls on all countries to follow the IHR (2005) and show global solidarity in rapid and transparent information sharing in response to Omicron.

Although yellow fever is not a contagious disease, the diffusion pattern described by Brazilian researchers in a new study is known as “spread by contagion.’
This term refers to the virus transmission through contiguous and nearby areas.
Yellow fever is a non-contagious viral disease with two transmission cycles, sylvatic (in wild animals) and urban, between people.
Sylvatic yellow fever circulates among monkeys, and in Brazil, it is also transmitted by mosquitoes that bite an infected monkey who then infect others.