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CDC Experts Continue To Track New COVID-19 Variants At Airports

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Public-health officials continue to track new COVID-19 variants even though the pandemic was declared officially over last month. Experts from the U.S. Centers for Disease Control and Prevention (CDC) are monitoring samples from international passengers arriving in the U.S. after data collection got reduced when the pandemic measures were eliminated.

The Traveler-Based Genomic Surveillance program, launched by the CDC in late 2021, continues to operate in seven of the busiest international airports in the U.S. These airports include John F. Kennedy International Airport (JFK), Newark Liberty International Airport (EWR), San Francisco International Airport (SFO), Hartsfield-Jackson Atlanta International Airport (ATL), Los Angeles International Airport (LAX), Seattle-Tacoma International Airport (SEA), and Washington Dulles International Airport (IAD).

Partnering with XpresCheck, a company initially known for running airport spas but later involved in COVID-19 testing, CDC officials meet passengers from selected international flights after customs clearance. Officials request voluntary nasal swabs from the passengers, which are then pooled and tested by Ginkgo Bioworks, the CDC’s lab partner.

Dr. Cindy Friedman, chief of the travelers’ health branch at the CDC, emphasized the criticality of this program for early detection and filling in blind spots in global surveillance. As testing decreases in many countries, including the U.S., tracking passengers from abroad becomes an ideal method to monitor virus changes and global movement. Dr. Friedman herself participated in the program after returning from a trip abroad, underscoring the role of travelers as sentinels carrying valuable samples to the U.S.

“This program is critical for early detection and filling in many blind spots in global surveillance. This is really critical right now as many countries, including the U.S., are decreasing testing by as much as 90%. It’s a key piece of biosecurity,” Dr. Friedman was quoted as saying by TIME.

CDC officials select flights for testing each week based on global case trends. During the recent surge in cases in China and other parts of Asia, the program detected an increase in positive tests from the region just before case numbers peaked. The program often identifies case increases before they are reported in news stories or the public-health community.

To date, over 200,000 passengers have provided samples upon arrival in the U.S. Passengers offer anonymous information such as age, travel itinerary, and COVID-19 infection and vaccination history. They also provide two nasal swabs, with one added to a pooled sample and the other stored for potential later testing.

If the pooled sample tests positive, the second sample is individually tested to identify the positive cases within the pool. If novel changes are found in the genetic sequence, the second sample is sent to CDC labs in Atlanta for further characterization and added to the agency’s growing database of SARS-CoV-2 sequences.

In 2021, the program detected the Omicron BA.2 and BA.3 variants one week and six weeks ahead of reported cases in the U.S., respectively.

While the program has received an impressive number of volunteers willing to provide nasal swabs, maintaining this altruism may become more challenging as the urgency of the pandemic diminishes. Therefore, the CDC is strengthening its airport wastewater testing program as a potential screening method.

For about a year, the agency has collected wastewater directly from lavatories on overseas flights at three to four airports, as well as from communal drains at SFO. Initial testing has shown that wastewater reflects the same variants identified through nasal swab testing, a finding supported by similar studies in Australia.

Wastewater screening holds promise as a permanent pathogen screening tool that can be adapted to detect any emerging disease-causing agent, making it crucial in preparing for future biological threats.

Health officials emphasized the importance of learning from the program’s success and ensuring that the lessons are not wasted, particularly as precautions are being relaxed. Implementing anticipatory and proactive surveillance tools, such as wastewater screening, could have significantly benefited the world in early 2020 by detecting new strains of the coronavirus in multiple countries after its initial detection in China. This foresight would have facilitated the development of diagnostics, identification of outbreaks, and ultimately, changed the game.

Published by Medicaldaily.com



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Feeling Tired All The Time? Possible Causes And Solutions

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Long days of work, lack of sleep, and stress at the office can be the most common factors that make you feel tired. However, feeling “tired all the time” (TATT) without known reasons can be an indication of an underlying health issue that needs immediate attention.

Finding the exact cause of the lingering tiredness can be the first step toward solving the symptom.

Health conditions that cause fatigue:

1. Anemia – Anemia is one of the most common causes of fatigue. A person who has anemia does not have enough red blood cells in the body, causing symptoms such as tiredness, dizziness, feeling cold and crankiness.

Most often, anemia is caused by iron deficiency. Hence, the condition can be best resolved by including iron-rich foods in the diet and use of iron supplements.

2. Sleep Apnea – It causes the body to stop breathing momentarily during sleep. The condition can affect the quality of sleep and hence make you feel fatigued.

For milder cases of sleep apnea, lifestyle changes such as losing weight or quitting smoking can help solve the sleep disorder. In more severe cases where there is an obstruction in breathing, surgeries and therapies can help.

3. Diabetes – A person who has diabetes has changes in blood sugar level, which can cause fatigue. A patient who is already on diabetic medication can also experience tiredness as a side effect of the medication.

Early identification and taking the correct treatment is the key to managing diabetes. Losing extra weight and having a healthy diet also help in the treatment.

4. Thyroid – Thyroid diseases can be due to an overactive or an underactive thyroid gland. In people who have an underactive thyroid (hypothyroidism), the metabolism slows down leading to symptoms such as lethargy and fatigue. In people with an overactive thyroid (hyperthyroidism), the metabolism speeds up leading to fatigue and difficulty sleeping.

Right diet and lifestyle choices, along with medications, can help in thyroid management.

5. Infections – A person can show symptoms of fatigue when the body is fighting a viral or bacterial infection. Infections ranging from the flu to HIV can cause tiredness.

Along with fatigue, other symptoms such as fever, headache, body aches, shortness of breath and appetite loss can also accompany the infection. Treating the symptoms and taking adequate rest helps in faster recovery.

6. Food allergies – Fatigue may be an early warning sign of hidden food allergies and autoimmune disorders such as celiac disease. Identifying the allergen using a food allergy test or through an elimination diet can help in allergy treatment.

7. Heart disease – If you feel exhausted from an activity that used to be easy, then it is good to check your heart health, as fatigue can be an indication of underlying heart disease.

8. Depression/ anxiety – Fatigue can also be an indicator of a mental health disorder such as depression or anxiety. A combination of medication and psychotherapy can help relieve symptoms.

Lifestyle causes

Apart from serious health conditions, certain lifestyle habits such as dehydration, poor diet, stress and insufficient sleep can cause exhaustion. Having a well-balanced diet, regular exercise and routine sleep can help solve fatigue caused by lifestyle habits.

Published by Medicaldaily.com



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How To Overcome Your Sleep Debt And Reclaim Energy

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Picture this: you’re burning the midnight oil, studying or binge-watching your favorite shows, all at the expense of a good night’s sleep. Have you ever stopped to think about the toll it takes on your body and mind? The consequences can be more serious than you might realize.

Not getting enough sleep can translate into a multitude of issues, including weight gain, lack of focus, tiredness, a haze of confusion, and even depression. If you too are encountering similar issues lately then chances are you have a sleep debt.

Wondering what is sleep debt?

People from 13-18 years of age need 8 hours of sleep, whilst adults beyond that age will require at least 7 hours of snooze.

Sleep debt is a collection of the total hours you haven’t slept or traded your sleep for something else. Sleep debt keeps piling up as a person falls short of the total hours of sleep recommended for an adult, according to the Centers for Disease Control and Prevention.

And when you keep letting go of your sleep for other activities, the body adapts to the new normal and effects start to reflect on the energy levels, which deplete.

“However, like every other debt out there, this too has a repayment option,” Dr. Kunal Kumar, medical director of the Sleep Center at Einstein Medical Center in Philadelphia, told Livestrong.

Below are some expert-vetted ways you can pay back the sleep debt. (Courtesy: Livestrong and Sleepfoundation)

Just like financial debt, imagine sleep debt as a debt you owe to your body. It needs to be repaid. The good news is that catching up on sleep is indeed possible.

  • Maintain a set sleep schedule: Overhauling the sleep schedule is a pretty difficult task to achieve, and it’s best to do that gradually. Create a set sleep schedule by making some small changes to your routine. Instead of making abrupt shifts in your bedtime or wake-up time, adjust them gradually by 15 to 30-minute increments.
  • Minimize your gadget usage: Wind down activities and minimize electronic usage before bed to promote better sleep. Relax and prepare for quality sleep by dimming the lights and setting an alarm for 30 minutes to an hour before bed.
  • Reshuffle your sleeping arrangements: Are you finding it hard to get a good night’s sleep due to excessive sweating? Well, here’s a handy solution: consider upgrading to a cooling mattress or opting for cooling sheets. These innovative sleep essentials can help regulate your body temperature, and keep you comfortably cool throughout the night, ensuring a more blissful slumber. Memory foam pillows can work wonders in relieving neck and back discomfort in case you are struggling with backache.
  • Improve the bedroom environment: Create a sleep-friendly bedroom environment by adjusting the temperature for comfort, and blocking out disruptive lights, or noises that might disturb your restful slumber. And if your mattress, pillow, or sheets are worn out or no longer providing the support you need, consider treating yourself to new ones.

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Omega-3 Fatty Acids Slow The Progression Of Amyotrophic Lateral Sclerosis: Study

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Omega-3 fatty acids are known for a range of health benefits, from promoting brain and heart health to reducing inflammation and protection against several chronic conditions.

In a new study, researchers found that omega-3 acids, especially the type found in foods like flaxseeds, walnuts, chia seeds, canola oil and soybean oil, can slow down the progression of amyotrophic lateral sclerosis (ALS).

It is a debilitating nervous system disease that gradually worsens over time and can be fatal. The condition results in a loss of muscle control and affects the nerve cells in the brain and spinal cord. It is also known as Lou Gehrig’s disease after the baseball player who was diagnosed with it.

The initial symptoms of the disease include muscle weakness, difficulty in walking and hand movements. The symptoms can slowly progress to difficulties with chewing, swallowing, speaking and breathing.

The exact cause of ALS is not known. However, around 10% of people get it from a risk gene passed down from a family member. It is estimated that more than 32,000 people in the U.S. live with the condition.

In the latest study, researchers from Harvard T.H. Chan School of Public Health in Massachusetts evaluated 449 people living with ALS in a clinical trial. The team assessed the severity of their symptoms, the progression of their disease, along with the levels of omega-3 fatty acids in their blood, for 18 months.

The study suggested that alpha-linolenic acid (ALA), a type of omega-3 found in plants, is particularly beneficial in slowing the progression of ALS. The participants with the highest levels of ALA had a 50% reduced risk of death during the study period compared to those with the lowest levels of ALA.

Researchers also found a reduction in death risk in participants who had eicosapentaenoic acid, the type of omega-3 fatty acid found in fatty fish and fish oil, and linoleic acid found in vegetable oils, nuts and seeds.

A previous study conducted by the same team suggested that a diet high in ALA and higher blood levels of the nutrient could reduce the risk of developing the condition.

“In this study, we found that among people living with ALS, higher blood levels of ALA were also associated with a slower disease progression and a lower risk of death within the study period. These findings, along with our previous research suggest that this fatty acid may have neuroprotective effects that could benefit people with ALS,” said Kjetil Bjornevik, the lead author of the study.

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