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This year's flu season has been severe, with cases spiking not once but twice. Despite the decline in COVID-19 infections, as indicated by data from the Centers for Disease Control and Prevention (CDC), flu activity continues to be unusually high. While viral interference—the fact that one virus can suppress another—can be cited as a reason why COVID-19 infections have declined, the flu has persisted.
Although the wave of COVID-19 this year has been somewhat subdued, the flu is the new hot stuff with a surprise comeback. But this raises a very important question: Is it possible to get the flu twice within a season despite receiving a vaccine? The answer is a simple yes. Why does this happen and how do you counter it?.
Yes, you can get the flu twice in one season—even after getting vaccinated. The flu virus is constantly evolving, and multiple strains circulate at any given time. While flu shots provide valuable protection, they are not foolproof. Practicing good hygiene, boosting your immune system, and taking preventive measures can help reduce your risk of back-to-back infections. If you do get sick, monitor your symptoms closely and seek medical attention if necessary.
Flu season is usually from October to May, and several different strains of the virus are floating around at one time. What this means is that even if you've already had the flu, you may not be protected against a second strain that arises later in the season.
Yes, and it's more prevalent than you would imagine. Four types of influenza viruses exist—A, B, C, and D—but influenza A and B are responsible for most cases of seasonal flu. Within each of these categories, several subtypes and strains are present, making reinfection more likely.
Your body acquires immunity to a strain after getting infected, but this immunity is not always transferred to other strains. For instance, if you get influenza A (H3N2) early in the season, you may still get infected by influenza B thereafter. Furthermore, the flu virus is constantly mutating, and this makes variants able to outsmart the immune system's defenses.
The chances of reinflection with the same strain are slim but not out of the question. Your body creates a defense after the initial contact, lowering the risk of reinfection. The flu virus does make changes in its genes quite often, so even minor mutations can cause reinfection in certain situations.
Flu vaccines are formulated based on professional estimates of the most prevalent circulating strains for each season. But they are not always a perfect match.
For example, the 2018 flu vaccine was only 36% effective against the prevailing strain that year. The efficacy of flu vaccines depends on how well the strains chosen for the vaccine match those that are circulating. Also, the immune system takes two weeks to develop a response to the vaccine, so exposure during this time can still lead to infection.
With that said, vaccination greatly reduces the severity of the illness, preventing hospitalization and complications.
Back-to-back flu infections are possible for a variety of reasons:
Multiple circulating strains – Both Influenza A and B cause seasonal flu, and multiple strains of each can circulate at the same time.
Immune system limitations – A past infection's immunity may not provide complete protection against a new strain.
Vaccine mismatch – If the vaccine doesn't provide full protection over the strains in circulation, reinfection is likely.
Weakened immunity – People with weakened immune systems have a higher chance of contracting multiple infections.
Some groups are more at risk of getting multiple infections of the flu during the same season, including:
Unvaccinated people – Without a flu shot, there is no baseline immunity.
Individuals with compromised immune systems – Lupus, HIV, or diabetes may reduce immunity.
Infants and elderly adults – Individuals less than 2 years and above 65 years of age possess a weaker defense mechanism.
Expectant women – Immunity changes during pregnancy and thus makes an individual more vulnerable.
Individuals with exposure to dense populations – Office spaces, schools, and public transport boost risks of exposure.
While the majority of flu cases recover on their own with rest and fluids, severe symptoms need medical treatment. You should seek a healthcare provider if you have:
While reinfection is a possibility, there are precautions you can take to reduce your risk:
As flu season persists, being well-informed and proactive is your best protection against repeated bouts of illness.
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Every year on September 29, the world observes World Heart Day, while we all talk about the ways one can protect their hearts, changes in food, and lifestyle, we often leave one very vulnerable group - the younger generation, or those below 18. As per the American College of Cardiology, young Indians have a fatigued heart, with 40% of them being between the ages of 13 to 35.
For children in India, this oversight is turning into a public health crisis. Pediatric heart screening is no longer a luxury reserved for the symptomatic; it is a fundamental, proactive check required to combat a rising wave of congenital defects and early-onset, lifestyle-driven heart disease.
Pediatric heart screening is fundamentally a medical check-up done to look for heart problems in children. It is an essential health assessment that helps doctors find conditions like heart defects, irregular heartbeat, or the risk of future heart disease at an early stage.
The importance of this check-up is underscored by the silent nature of many cardiac issues in young people. Dr. Bharath A P, Consultant, Paediatric Cardiology, Aster CMI Hospital, Bengaluru, emphasizes the gravity of the situation: “It is very important to get heart screenings done at a young age because many heart problems can be silent and not show clear symptoms”.
He explains that these checks are crucial because “Early screening can find hidden issues like heart defects, abnormal rhythms, or high blood pressure before they become serious”.
Adding a metabolic dimension to this urgency, Dr Mayanka Lodha Seth, Chief Pathologist, Redcliffe Labs, notes that the environmental factors are making the problem worse. She states, “over the years we have seen the lifestyle and eating habits are deteriorating with each passing day, and the reason is easily accessible junk available while sitting at home in just 15 minutes, so getting the overall health screening at a young age, including heart health screening has been, extremely important”.
If these conditions, whether structural or lifestyle-related—are detected early, doctors can give the right treatment and prevent future, often fatal, complications. The ultimate benefit? Early detection helps doctors treat conditions before they become serious , prevent emergencies, improve the child’s growth and activity, and reduce the risk of future heart disease.
Pediatric heart screening must be viewed as a layered approach that combines the traditional clinical assessment of the heart's function and structure with modern pathology-based testing that uncovers metabolic risk factors.
From a cardiologist’s perspective, the screening involves direct assessments of the heart’s mechanics. Dr. Bharath A P details the components: “The screening can include listening to the heartbeat, checking blood pressure, and doing tests like ECG or echocardiogram to see how the heart is working”. These clinical checks are particularly useful for children who already display symptoms like chest pain, fainting, or breathing problems. They are also vital for children with a known family history of heart disease.
The modern threats to heart health: obesity, high cholesterol, and inflammation, often start silently and require blood tests to uncover. This is the domain of pathology-based screening.
Dr. Mayanka Lodha Seth stresses the importance of this method, particularly in light of modern lifestyle disorders.
“With the increasing incidences of lifestyle related disorders,” she says, “it is recommended to start with preventive screening at an early age starting with pathology-based screenings of blood sugar levels, lipid profile, vitamin deficiencies, and inflammation markers”.
A pediatric screening report can reveal hidden risk markers that might otherwise go unnoticed, such as high LDL cholesterol, high triglycerides, elevated CRP (a marker of inflammation), or abnormal blood sugar levels. This approach can detect congenital abnormalities in infants, but also identify metabolic or lifestyle-linked risks in older children like high cholesterol, insulin resistance, or even early signs of fatty liver. These conditions may not show visible symptoms but can silently progress if undiagnosed.
“If these [pathology results] indicate abnormalities, more advanced evaluations like ECGs or echocardiography can be advised in consultation with a pediatric cardiologist,” explains Dr. Mayanka. The biggest advantage of this combined approach is, quite simply, prevention.
The urgency for widespread pediatric heart screening is magnified by the severe burden of heart disease among India's young population.
Dr. Mayanka highlights the scale of the congenital issue: “In India, the burden of pediatric heart disease has been rising congenital heart disease (CHD) is the most common birth defect, affecting nearly 2 lakh babies every year”. To put this into perspective, medical studies and organizations like Children's HeartLink estimate that more than 200,000 children are born each year in India with Congenital Heart Defects (CHD), making it a leading cause of infant mortality.
Equally concerning is the rapid rise in acquired risk factors. Dr. Mayanka adds, “What is equally concerning is the increase in acquired heart risks among children, linked to obesity, sedentary lifestyle, poor diet, and even air pollution”. This trend is not anecdotal; she points out that “recent studies suggest that risk factors like childhood obesity and elevated cholesterol are climbing steadily in urban India, setting the stage for cardiovascular problems much earlier than before”. Early screening can help identify these silent risk factors before they manifest as clinical disease.
The question of when screening should begin has a clear answer from cardiology: often, before the child is even born.
Dr. Bharath A P confirms that “Heart screening can be done at any age, even in newborn babies, if there is a need”. Infants can certainly get it done, especially if they show signs like bluish skin, trouble feeding, or fast breathing, or if there is a family history of heart disease. Basic heart checks are part of routine newborn care, and special tests like an echocardiogram can help find heart defects early.
“So yes, infants can have heart screening if doctors suspect a problem or for early detection,” he concludes. For healthy children without symptoms, screening is usually done later during regular check-ups or before starting sports.
For acquired conditions, the timeline differs. Dr. Mayanka notes. “For acquired conditions, pathology-based screenings can begin from school-going age, especially if there’s a family history of diabetes, high cholesterol, hypertension, or sudden cardiac events”. However, she stresses that it is not appropriate to set a minimum age, as “there is no harm in getting the preventive checkups done as they are completely non-invasive and have zero side-effects, so they can be for anyone and everyone”.
For families with a history of heart disease, heart screening transcends prevention and becomes a crucial tool for genetic surveillance.
Dr. Bharath A P emphasizes that if a parent or a close family member has a history of heart disease, “genetic testing and early heart screening for their child become very important”. Some heart problems can be inherited, and checking the child early can help detect issues before symptoms appear.
The power of combining clinical and genetic studies is undeniable. Dr. Bharath confirms, “Yes, paediatric heart screenings combined with genetic studies can help identify inherited heart conditions like hypertrophic cardiomyopathy or arrhythmia syndromes”.
“Knowing about these risks early allows doctors to monitor the child closely, start treatment if needed, and give advice on safe activities,” says Dr. Bharath. Ultimately, combining both methods gives the best chance to prevent serious complications and helps families take timely steps to protect the child’s heart health.
The most compelling argument for pediatric heart screening is its direct link to reducing the devastating rise of Sudden Cardiac Arrest (SCA) in young adults.
Dr. Mayanka Lodha Seth warns, “India has witnessed a worrying trend of sudden cardiac arrests in people in their 20s and even before that”. This is not always a random tragedy;
“Many of these are linked to risk factors that begin silently in childhood like obesity, diabetes, and high cholesterol”. By screening early, parents ensure timely intervention that may help reduce the likelihood of such tragic events later in life.
The role of the pathologist’s report is vital here. Screening allows for the timely detection of conditions like abnormal lipid levels, inflammation markers, vitamin D deficiency, or thyroid dysfunction, all of which can influence heart health. Early interventions, such as lifestyle changes, dietary improvements, or medical management, can significantly reduce the long-term risk of a major cardiac event.
What happens when a child’s heart screening reveals a risk factor, such as high cholesterol or elevated inflammation? The doctors’ shared advice is clear: avoid panic and embrace action.
Dr Mayanka Lodha Seth has a definitive perspective: “A non-favorable report is not a life sentence it’s a roadmap.” She goes further to challenge the societal perception of health checks:
“We should be scared of detecting chronic conditions at later stages and not identifying it at early stage that allows us to take charge, but don’t know why the society has built it otherwise”. She reminds us that a healthcare journey doesn’t end, but “starts with diagnosis”.
For parents receiving a challenging report, the focus must shift immediately to lifestyle corrections.
“Infact, parents can focus on lifestyle corrections balanced diets, regular physical activity, limiting processed foods, and ensuring adequate sleep,” she advises. In most cases, these steps can significantly improve outcomes. Medical guidance should always be followed, but “panic only delays practical action and wellness”.
Furthermore, Dr. Mayanka highlights the immense long-term benefit of this early intervention: “Also, if prevention is introduced at an early stage, it will become a lifestyle for children making their overall life healthy and filled with wellness”.
For parents worried about exposing their children to hospitals and testing labs, accessibility is no longer an excuse.
“This is where home collection services by Redcliffe Labs help. Health checkups are highly accessible,” says Dr. Mayanka. Trained phlebotomists can collect samples at home with minimal or no discomfort , and reports are shared digitally, effectively reducing both hospital exposure and anxiety for families.
As Dr. Bharath A P summarizes, “If these are detected early, doctors can give the right treatment and prevent future complications”. By embracing the dual approach of clinical and pathology-based screening, parents and doctors can work together to give every child the best possible defense against the rising tide of cardiac risk.
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New Covid Strain: As we enter autumn, rates of respiratory illnesses start to rise and people ask how the most common current lineages, or groups of genetically similar viruses, compare to previous COVID-19 variants.
As autumn settles in, health officials across the UK are reporting an increase in Covid-19 cases. The latest concern is the rise of the Stratus variant, scientifically labelled XFG, and its sub-lineages like XFG.3. Alongside Stratus, the Nimbus variant (NB.1.8.1) is also circulating, but Stratus is quickly becoming the dominant strain.
Genomic surveillance data from the UK Health Security Agency (UKHSA) shows that last month:
Positivity rates for Covid-19 have jumped from 7.6% to 8.4% in just a week, and hospital admissions have also increased from 2.00 to 2.73 per 100,000 people. While current data suggests the illness is not more severe than previous strains, its rapid spread and unusual symptoms are raising concerns.
One feature setting the Stratus variant apart from earlier forms of Covid-19 is a hoarse, croaky voice that often appears early in infection. Many patients report a raspy throat and significant soreness, making it easy to confuse with common colds or seasonal allergies.
According to doctors, while typical Covid symptoms like cough, fever, and fatigue remain, this hoarseness is becoming a standout marker of Stratus infections. Dr Nye, speaking to The Mirror, noted: “In most ways, it’s almost identical. However, people with this version tend to get very sore throats and a hoarse voice, compared with the other more general symptoms.”
Other associated symptoms include:
This subtle shift complicates diagnosis, especially as flu and RSV (respiratory syncytial virus) also circulate at the same time.
Public health experts warn that the UK may be heading into a “tripledemic”, a seasonal wave where Covid-19, flu, and RSV spread simultaneously. Each presents with overlapping signs such as cough, fever, and body aches, making it difficult to know which infection a person has without testing.
RSV typically causes cold-like symptoms such as a runny nose, sneezing, and mild cough but can lead to pneumonia in vulnerable groups. Flu usually strikes suddenly with chills, fever, and severe fatigue. Covid-19 overlaps heavily with both, but the hoarse voice linked to Stratus could be one of the few distinguishing features.
To combat this surge, the UKHSA, NHS England, and the Department of Health have launched a campaign under the banner “Stay Strong. Get Vaccinated.” The initiative spans television, radio, outdoor billboards, and social media, urging people to get protected before cases climb higher in winter.
For the first time, flu vaccines are being offered to toddlers in community pharmacies in the form of a nasal spray. Covid-19 and RSV vaccines are being prioritized for pregnant women, older adults, and people with weakened immune systems. Most groups will be able to book appointments from 1 October, ensuring early protection before peak transmission season.
Dr Jamie Lopez Bernal, Consultant Epidemiologist at UKHSA, emphasized:
“Flu and COVID-19 levels are starting to slowly increase. While this is expected at this time of year, now is the time for people to come forward for their winter vaccines if they’re eligible, before these viruses circulate more widely.”
The UKHSA guidance remains clear: if you develop symptoms of a respiratory infection and feel too unwell to continue normal activities, stay at home if possible and avoid close contact with vulnerable individuals.
For those who cannot stay at home, steps to reduce transmission include:
These measures, though familiar from earlier pandemic waves, remain highly effective in curbing spread.
Doctors advise paying close attention to the nature of your cough. Dr Amir Khan, a regular medical contributor, explains that:
Such symptoms may indicate complications that need immediate attention.
The UK continues to rely on robust surveillance systems, including the UKHSA data dashboard, hospital admissions monitoring, and genome sequencing, to track the behavior of new variants. These tools help experts assess transmission potential and guide public health responses.
While the Stratus variant is not currently linked to more severe illness than earlier variants, its rapid spread and distinctive hoarse voice symptom have made it a focal point of this autumn’s Covid-19 landscape.
The bottom line? Vaccination, vigilance, and common-sense precautions remain our strongest defenses. With flu, RSV, and Covid-19 all rising, experts stress that protecting yourself early, especially with seasonal jabs, will reduce both individual risk and pressure on the health system in the coming months.
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Rabies is one of the oldest and deadliest viral diseases known to humankind. Despite being 100% preventable, it still kills nearly 59,000 people worldwide each year, with India accounting for almost one-third of these deaths, according to the World Health Organization (WHO). The virus is carried in the saliva of infected animals and spreads through bites, scratches, or even licks on broken skin. Once clinical symptoms appear, rabies is almost always fatal, making timely prevention the only real protection.
On World Rabies Day, which falls on September 28, doctors remind us of the importance of awareness, timely treatment, and complete vaccination in preventing rabies-related deaths.
Rabies vaccines can be injected in different body sites depending on age and type of vaccine. Dr. Pooja Pillai, Consultant, Internal Medicine, Aster CMI Hospital, explains:
“Modern rabies vaccines are usually given as an intramuscular injection in the deltoid muscle of the upper arm because it has good blood supply and allows the vaccine to work effectively. In children, the thigh is preferred as their arm muscle may be too small. Earlier practices of using the buttocks are now avoided since fat in that area reduces vaccine effectiveness.”
Dr. Ravi N. Sangapur, Consultant Physician and Diabetologist, also emphasizes: “In adults, the best site is the arm because it produces better immunogenicity.”
Reports of rabies deaths despite vaccination often point to lapses in treatment. “One major reason is improper wound care,” notes Dr. Pillai. Thorough washing with soap and water for at least 15 minutes is the very first step after a bite or scratch. Missing vaccine doses, wrong injection site, or use of poor-quality vaccines can also fail to protect.
Dr. Sangapur adds: “Failure to administer immunoglobulins in Category III cases or issues in immunocompromised patients can lead to inadequate immune response and death.”
The vaccination schedule differs depending on exposure.
Post-exposure prophylaxis (PEP): For those never vaccinated, WHO recommends five doses on Day 0 (the day of the bite), Day 3, Day 7, Day 14, and Day 28. In severe bites, rabies immunoglobulin (RIG) should also be given on Day 0 around the wound.
Pre-exposure prophylaxis (PrEP): For veterinarians, animal handlers, or those at high risk, two doses on Day 0 and Day 7, with a booster on Day 21 or 28, are given to build long-term protection.
“Following the correct schedule is very important to ensure full protection against rabies,” stresses Dr. Pillai.
Both doctors agree on urgency. “The vaccine should be taken as soon as possible after exposure,” says Dr. Sangapur. Even if delayed, it may still work, but the sooner it starts, the higher the chances of preventing infection. Dr. Pillai highlights that ideally, the first dose should be given within hours of the bite, along with proper wound washing and antiseptic application.
A common misconception is that only deep bites are dangerous. In reality, scratches also carry risk if the skin is broken.
“Rabies virus is present in the saliva of infected animals, and their nails may carry it from grooming,” explains Dr. Pillai. “Even minor scratches or licks on broken skin can transmit rabies. They must never be ignored.”
Dr. Sangapur agrees: “Such cases should also take the vaccine.”
While dogs remain the most common carriers, other animals can transmit the virus too. Cats, monkeys, mongoose, foxes, jackals, wolves, and in some countries, bats, have all been documented as carriers.
“Any bite or scratch from a mammal should be taken seriously,” says Dr. Pillai. “Thinking only dog bites are dangerous is risky.”
If a person is re-exposed within three months of completing the vaccine schedule, Dr. Sangapur explains that revaccination is not needed, only proper wound care suffices. However, if exposure happens after three months, two additional booster doses on Day 0 and Day 7 are recommended.Doctors Answer The Most Googled Rabies-Related Questions For You
Dr. Pillai adds that the body develops immune memory after a full vaccination course, providing long-lasting protection, but boosters strengthen the response during re-exposure.
Rabies continues to claim lives despite the availability of effective vaccines and treatment. Every bite or scratch from a potentially infected animal must be treated as an emergency. Washing the wound, seeking medical help immediately, and completing the prescribed vaccine schedule can save lives.
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