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Health

Seasonal Respiratory Tract Infections Prevention & Risk stratification

Winter poses a recurrent challenge for healthcare systems worldwide because of seasonal surges in respiratory tract infections (RTIs). These infections disproportionately affect “vulnerable” subpopulations — namely the elderly, infants and children, pregnant women, immunocompromised persons, and those with chronic comorbidities.

In intensive care practice — including in a cosmopolitan city such as Dubai with a diverse population — the burden of severe RTIs becomes evident each winter. Pneumonia, acute respiratory distress syndrome, exacerbation of chronic diseases, and multi-organ complications frequently present in high-risk patients admitted to ICUs. Preventive strategies, both at individual and public health level, are therefore of paramount importance.

This article synthesizes recent updates in medical literature (2024–2025) on prevention of RTIs, explores practical challenges from ICU experience, and advocates for strengthened measures to protect high-risk groups, especially during winter.

Why high-risk groups deserve special attention

A 2025 cross-disciplinary position paper from the United Arab Emirates specifically highlights that respiratory infections remain a major cause of mortality among young children and adults — particularly the elderly or those with underlying conditions — despite available vaccines and antiviral treatments.

According to guidelines from global health authorities, high-risk subpopulations are defined to include: children (especially infants), older adults, pregnant or postpartum women, immunocompromised individuals, and those with chronic diseases (e.g., cardiopulmonary, metabolic, renal).

For pregnant women, the stakes are even higher: a recent systematic review of human cases of avian influenza (A[H5]) during pregnancy reported maternal mortality as high as 90 %, and perinatal mortality (stillbirth/neonatal death) ~86.7 % among reported cases — underlining the extreme vulnerability of this population in the face of novel or zoonotic influenza viruses.

Moreover, infants and young children (<5 years) remain highly susceptible to viral lower RTIs: for example, Respiratory Syncytial Virus (RSV) induces a considerable global burden, with millions of hospitalizations and a high death toll in low- and middle-income countries.

Therefore, preventive measures must be prioritized — especially among these high-risk groups — to reduce both direct morbidity/mortality and downstream burdens on intensive care resources

High-Risk Groups for Severe Respiratory Tract Infections

GroupReasons for Increased RiskClinical Impact
Pregnant womenImmunological shifts, reduced lung capacitySevere pneumonia, preterm birth, fetal compromise
Infants & young childrenImmature immune systemRSV bronchiolitis, viral pneumonia
ElderlyImmunosenescence, comorbiditiesHigh hospitalization & mortality rates
ImmunocompromisedReduced viral clearanceProlonged infections, severe disease
Chronic disease patientsReduced physiological reserveExacerbations of COPD, asthma, CHF

Preventive strategies: vaccines and non-pharmaceutical interventions

Vaccination: cornerstone of prevention

Recent literature underscores the critical role of vaccination against major respiratory viruses. A narrative review published December 2024 demonstrated that immunization against SARS-CoV-2, influenza, and RSV significantly reduces severe disease, hospitalizations, and mortality among vulnerable individuals — including older adults and those with frailty or comorbidities.

For pregnant women, the guidance recently updated by the American College of Obstetricians and Gynecologists (ACOG) emphasizes that COVID-19 vaccination (including booster doses) is safe during pregnancy, and beneficial both for the mother and the newborn. Vaccination reduces maternal complications, preterm birth, stillbirth, and provides passive immunity to infants during early life.

Moreover, maternal immunization has demonstrated effectiveness in reducing neonatal and infant morbidity and mortality from respiratory viral infections. A 2025 review from India found that maternal immunization (e.g., influenza) substantially lowered deaths and severe outcomes in newborns — a critical consideration for countries with diverse perinatal populations.

In addition to influenza and COVID-19 vaccines, emerging preventive options for RSV are gaining traction; current evidence supports passive immunization in early infancy (e.g., monoclonal antibodies), and active immunization strategies are under development.

Finally, there may be indirect benefits from vaccines targeting bacterial pathogens: a systematic review showed that pneumococcal conjugate vaccines (PCVs) may reduce the incidence of viral RTIs by disrupting viral-bacterial interactions in the respiratory tract.

Given this, comprehensive immunization strategies — integrating influenza, COVID-19, RSV (as vaccines/antibodies become available), and pneumococcus — should form a central pillar of prevention, especially for high-risk individuals.

Non-pharmaceutical interventions and healthcare practices

Vaccination alone is not sufficient. According to guidance from the World Health Organization (WHO) Europe region, standard measures remain vital: staying home when ill, rigorous hand hygiene, cough etiquette, ensuring adequate indoor ventilation, and, in high-risk settings or crowded indoor spaces, mask-wearing and physical distancing when appropriate.

In healthcare settings — especially ICUs or wards managing severe RTIs — timely identification and triage, isolation or cohorting of suspected cases, use of droplet/contact (and when indicated, airborne) precautions during aerosol-generating procedures, and rapid initiation of antivirals (e.g., for influenza) are essential.

Also, the 2025 UAE position paper called for improved communication between healthcare professionals and patients to close gaps in vaccine uptake and adherence to prevention guidelines.

Call for reinforced preventive strategy in Dubai and similar contexts

Based on the convergence of recent evidence and practical ICU experience, I propose the following prioritized actions:

  1. Promote vaccination aggressively, especially for high-risk groups (elderly, pregnant women, children, chronic disease, immunosuppressed) — including seasonal influenza and COVID-19 vaccines; and, as they become available or recommended, RSV and pneumococcal vaccines/antibodies.
  2. Public health education: Raise awareness among patients and communities about the risks of RTIs, benefits of vaccination, and importance of early presentation in case of symptoms.
  3. Hospital and community infection control: Reinforce NPIs — hand hygiene, cough etiquette, staying home if symptomatic, mask use in crowded indoor spaces or high-transmission periods; improve ventilation in households, workplaces, and public spaces.
  4. Health-system readiness: Hospitals and ICUs should prepare protocols for timely triage, isolation/cohorting, and early antiviral therapy; public health authorities should monitor viral circulation and communicate risks effectively.
  5. Perinatal care integration: Obstetricians, midwives, primary care providers should integrate respiratory virus vaccination (influenza, COVID-19) into routine antenatal and postnatal care, to protect both mothers and newborns.

Key Preventive Measures for Winter RTI Prevention

LevelMeasureEvidence & Impact
IndividualAnnual influenza vaccineReduces severe disease & ICU admissions
COVID-19 vaccine/boosterReduces hospitalization & maternal-fetal risks
Maternal vaccines (influenza, COVID-19, RSV)Protects mothers + newborns
HouseholdStaying home when illWHO recommends as first-line prevention
Good ventilation & hygieneReduces viral concentration indoors
Masking when symptomaticParticularly important for protecting infants
Healthcare systemEarly testing & antiviral useReduces complications if started early
Isolation/cohortingLimits nosocomial transmission
Public health communicationEnhances vaccine uptake (UAE 2025 position paper)
CommunitySurveillance & seasonal alertsSupports early preparedness

 

Why winter prevention matters — broader implications

Failure to implement preventive measures results not only in increased morbidity and mortality among vulnerable individuals, but also in broader health system strain. When ICUs are saturated with severe pneumonia cases, other critical care needs (e.g., trauma, surgery, non-respiratory emergencies) may be compromised.

Moreover, viral RTIs in high-risk populations — especially infants and the elderly — can lead to long-term sequelae (e.g., chronic lung disease, developmental issues in children, exacerbation of comorbidities in older adults). Preventive measures, therefore, contribute to healthier ageing and reduced long-term healthcare burden.

Finally, prevention — especially through vaccination — has societal and economic value: reduced hospitalizations, fewer workdays lost, lower risk of outbreaks in communities, and preservation of healthcare resources.

Conclusion

Seasonal surges in respiratory tract infections during winter remain a formidable challenge — particularly for high-risk groups such as pregnant women, children, and the elderly. Recent evidence (2024–2025) reaffirms that vaccination (influenza, COVID-19, and eventually RSV) combined with non-pharmaceutical measures are the most effective way to protect these vulnerable populations.

A coordinated approach — integrating public health outreach, perinatal care, community education, and healthcare system preparedness — is essential.

In the coming seasons, given the ever-present threat of viral evolution (including influenza and zoonotic viruses), robust prevention strategies are not optional — they are lifesaving.

Dr. Mahmoud Medhat Aboumousa

Critical Care Specialist

International Modern Hospital Dubai

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Health

Safe Blood Donation Before, During, and After Ramadan – Medical Guidelines by Dr. Ganesh Dhanuka

By Dr. Ganesh Dhanuka
Specialist Internal Medicine and Nephrology
International Modern Hospital


Blood donation remains one of the most impactful humanitarian acts, capable of saving multiple lives with a single unit of blood. However, during the holy month of Ramadan, many individuals question whether it is safe to donate while fasting and how to properly prepare for donation.

From a medical standpoint, blood donation is generally safe for healthy individuals. Nevertheless, appropriate preparation — especially in the context of fasting — is essential to minimize risks such as dizziness, dehydration, or hypotension.

This article outlines evidence-based recommendations for blood donation before, during, and after Ramadan, along with its physiological, psychological, and societal benefits.


Preparing for Blood Donation Before Ramadan

Proper preparation significantly reduces the risk of adverse effects during donation. Individuals planning to donate should:

Nutritional Preparation

Consume a balanced meal rich in iron and protein approximately 2–3 hours before donating. Iron-rich foods such as lean red meat, spinach, lentils, beans, and fortified cereals help maintain adequate hemoglobin levels. Protein supports plasma volume and recovery.

Avoid donating on an empty stomach, as this increases the likelihood of lightheadedness and vasovagal reactions.

Hydration Status

Adequate hydration is critical. Donors should:

  • Increase water intake the day before donation.
  • Drink extra fluids on the day of donation.

Proper hydration helps maintain blood pressure and reduces the risk of fainting.

Sleep and Lifestyle Factors

  • Ensure 6–8 hours of quality sleep the night before.
  • Avoid alcohol for at least 24 hours prior to donation.
  • Refrain from strenuous physical activity before donation.

Medical Disclosure

Bring valid identification and honestly disclose:

  • Any chronic medical conditions.
  • Current medications.
  • Recent illnesses or procedures.

Transparency ensures donor safety and protects recipients.


What to Expect During Blood Donation

The blood donation process is generally straightforward and takes about 10–15 minutes for the actual collection.

During donation:

  • Stay calm and breathe normally.
  • Avoid sudden movements.
  • Inform medical staff immediately if you experience dizziness, nausea, sweating, blurred vision, or weakness.
  • Follow all staff instructions carefully.

Most temporary reactions, when they occur, are mild and resolve quickly with rest and hydration.


Post-Donation Care and Recovery

The post-donation period is crucial for safe recovery.

Immediate Aftercare

  • Rest at the donation center for 10–15 minutes.
  • Accept fluids and light refreshments provided.
  • Avoid standing up abruptly.

The Next 24 Hours

  • Increase fluid intake significantly.
  • Consume iron-rich foods to replenish red blood cell production.
  • Avoid heavy lifting for 24 hours.
  • Avoid strenuous exercise on the same day.
  • Avoid alcohol for several hours after donation.

If dizziness occurs, lie down and elevate your legs until symptoms resolve.

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Food

Foods That Look Healthy for Weight Loss (But Actually Aren’t)

By Dr. Yara Husein (Food and Nutrition Expert)

Companies often use specific buzzwords on food labels to market products as healthy and weight-loss friendly options. In reality, these options can sometimes have the opposite effect. Here are some common foods and drinks that might be holding you back:

Fat-free dairy products

Many think that fat-free dairy products are ideal for dieting and do not contribute to weight gain. However, in truth, these products can cause weight gain because fat-free products are less satiating than their full-fat counterparts; fat is a nutrient that supports feelings of fullness and makes food more enjoyable. Furthermore, food manufacturers often replace fat with sugar in low-fat and fat-free products to compensate for the lost flavour. Beyond that, skimmed dairy products provide the body with fewer nutrients than full-fat products, because vitamins such as A, D, E, and K are fat-soluble vitamins that require fat to enter the body, be absorbed, and be utilized.

Gluten-free foods

While it is essential for people with gluten-related disorders to avoid gluten, gluten-free foods are not necessarily healthier than foods containing gluten. Some processed gluten-free foods and desserts contain the same amount of calories and added sugar—if not more—as other snacks. Studies, including a study published in the journal PeerJ, indicate that gluten-free snack foods tend to be lower in protein, fiber, and certain vitamins and minerals compared to their gluten-containing counterparts. They are also generally more expensive.

Breakfast cereals

Many people think that breakfast cereals are an ideal and healthy breakfast to start their day, but in reality, many cereals are made from refined grains that lack nutrients like protein and fiber, and they can contain a high percentage of added sugar. For example, Honey Nut Cheerios, which are marketed as heart-healthy, contain 12 grams of added sugar per cup. Eating large quantities of these and other cereals high in added sugar may lead to an increased risk of heart disease, high blood pressure, high triglyceride levels, and weight gain.

Energy and sports drinks

Companies market sports and energy drinks as ways to boost energy and athletic performance, but these drinks can contain a massive amount of sugar. Consequently, they can contribute to weight gain for people who consume them without performing intense physical exercise. For instance, a popular energy drink like Monster (473 ml) contains 54 grams of added sugar—a quantity much higher than the amount recommended by the American Heart Association (25g for women and 36g for men). Research, including a study published in the journal Pediatric Obesity, has linked the consumption of sweetened beverages to health problems, including high blood pressure, fatty liver, and obesity in children and adolescents.

Diet soda

When following a diet, many people may turn to sugar-free or calorie-free drinks, thinking they contribute to weight loss. However, studies indicate that diet soda may contribute to certain health problems by altering brain responses to food and increasing the desire to eat high-calorie foods such as sweets and fast food. A study published in the journal Nutrients linked the consumption of these drinks to a higher risk of metabolic syndrome, which is a group of symptoms that include increased belly fat, blood sugar, blood pressure, and blood lipid levels.

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Health

Excessive Screen Time in Children: Digital Eye Strain, Myopia Risk, and Long-Term Vision Health

By Dr. Tahere Rezaei
Ophthalmologist
International Modern Hospital Dubai


In today’s digital era, children are spending unprecedented hours on tablets, smartphones, and social media platforms. From a clinical perspective, the impact of excessive screen exposure on pediatric eye health is becoming increasingly evident.

Ophthalmology clinics are witnessing a clear rise in complaints linked directly to prolonged device use. Children often hold screens very close to their eyes and remain intensely focused for extended periods without taking breaks. This sustained near work places continuous strain on the visual system, particularly on the eye muscles responsible for focusing.

The most immediate and common consequence is digital eye strain. Symptoms typically include:

  • Headaches
  • Eye fatigue
  • Blurred vision
  • Burning sensation
  • Dryness due to reduced blinking

When children concentrate on screens, their blink rate significantly decreases. Reduced blinking leads to tear film instability, which contributes to dryness and irritation. Over time, persistent strain can affect visual comfort and academic performance.


Rising Concern: Childhood Myopia

Beyond temporary discomfort, there is a more serious long-term concern — the increasing prevalence of childhood myopia (short-sightedness).

Extended near work combined with limited outdoor exposure has been strongly associated with faster progression of myopia. Natural daylight and distance viewing play a protective role in visual development. When children spend most of their time indoors focusing on close objects, the eye adapts by elongating, leading to blurred distance vision.

Early-onset myopia is not simply about needing glasses. Higher degrees of myopia later in life increase the risk of:

  • Retinal detachment
  • Glaucoma
  • Myopic macular degeneration
  • Early cataracts

Preventing rapid myopia progression during childhood is therefore critical for long-term ocular health.


Screen Use and Sleep Disruption

Another clinically observed issue is the effect of screen exposure before bedtime. Blue light emitted from digital devices can suppress melatonin production, disrupting the natural sleep cycle. Poor sleep quality affects not only overall health but also visual comfort, concentration, and cognitive performance.

Children who use screens late at night frequently report:

  • Difficulty falling asleep
  • Morning eye discomfort
  • Increased fatigue during the day

Sleep plays a vital role in ocular surface recovery and overall neurological health.


Supporting Healthy Visual Development

For optimal eye development, children require balanced visual habits. Key preventive measures include:

  • Limiting continuous screen time
  • Encouraging daily outdoor activity
  • Maintaining proper room lighting
  • Ensuring appropriate screen distance
  • Practicing scheduled visual breaks (such as the 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds)

Parents play a crucial role in modeling healthy screen behavior and establishing structured digital routines.

As Dr. Tahere Rezaei emphasizes, eye health in childhood directly influences long-term vision outcomes. Early awareness, prevention, and regular eye examinations are essential to protect children from avoidable visual complications in adulthood.

Healthy eyes today mean clearer vision for life.

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