वैज्ञानिकों ने पता लगाया है कि हल्के लक्ष्णों वाले कोविड का काफी अवधि तक असर रहता है और लोगों के ठीक होने पर भी इसका प्रभाव पड़ता है। अमेरिका के लॉस एंजिल्स के शोधकर्ताओं ने पता लगाया है कि जिन लोगों में हल्के लक्ष्णों वाला कोरोना था उनमें ऐसे एंटीबाडी पाए गए हैं जो शरीर को खुद ही नष्ट करने लगते हैं और ऐसे मरीजों की रिकवरी में भी अधिक समय लगता है और ये एंटीबाडी उनकी कोशिकाओं को ही नष्ट करने लगते हैं।
सेडार सिनाई मेडिकल सेंटर के शोधकर्ताओं के हवाले से येरूशलम पोस्ट ने बताया कि इन मरीजों के शरीर में खुद को नष्ट करने वाले एंटीबा़डीज बनने से इन्हें ठीक होने में देरी होती है। इस दल ने 177 मरीजों पर शोध किया था।
यह शोध जर्नल ऑफ ट्रांसलेशनल मेडिसिन में छपा है और इसमें कहा गया है कि जिन लोगों को पहले कोविड संक्रमण हुआ था उनके शरीर में जो एंटीबाडीज बने थे उन्होंने बाद में अपनी ही कोशिकाओं को ही निशाना बनाना शुरू कर दिया था और इसी वजह से उन्हें ठीक होने में इतना समय लगा था।
उन्होंने अपने आसपास की कोशिकाओं को नष्ट कर दिया था और इसकी वजह ये इन मरीजों को कोरोना से उबरने में इतना समय लगा ।
यह भी पढ़े► ओमिक्रोन कोरोना के डेल्टा वेरिएंट के मुकाबले इम्युनिटी को चकमा देने में अधिक सक्षम: शोध
London - If you are having cold-like conditions such as sniffles, headaches, and tiredness. you are likely to be positive for Covid's Omicron variant, according to a UK study.
The Zoe Covid study app asked hundreds of thousands of people to log their symptoms and the investigators have been looking at ones linked to both the dominant Delta variant and the new highly transmissible variant Omicron.
The most common signs of the virus reported between December 3 and 10 were a runny nose, headache, fatigue, sneezing, and a sore throat, the Daily Mail reported.
The study suggests that the super mutant virus is more akin to a cold than Covid.
On the contrary, typical Covid symptoms include a continuous cough, high temperature or change/loss of their sense of taste and smell.
Epidemiologist Professor Tim Spector, lead scientist of the ZOE Symptom Tracking Study, has urged Britons to keep an eye out for these tell-tale signs of Omicron in the run up to Christmas, and before meeting friends and relatives, the report said.
"Hopefully people now recognise the cold-like symptoms which appear to be the predominant feature of Omicron," he said.
"Omicron symptoms are predominantly cold symptoms, runny nose, headache, sore throat and sneezing, so people should stay at home as it might well be Covid.
"Ahead of Christmas, if people want to get together and keep vulnerable family members safe, I'd recommend limiting social contact in the run up to Christmas and doing a few Lateral Flow Tests just before the big family gathering."
The warning comes alongside numerous reports that Omicron causes milder illness than past variants but scientists are still trying to untangle whether it is intrinsically weaker or if the population has higher levels of immunity, or even both.
In separate comments this week, Professor Spector said "classic" Covid symptoms like a fever, cough, or loss of smell, are now only present in the minority of cases.
He added that Omicron appears to be chipping away at the UK's vaccine protection from infection, but that jabs were still critical to protecting people.
"We are also seeing two to three times as many mild infections in people with boosters in Omicron areas as we do in Delta variant areas, but they are still very protective and a vital weapon," he said.
Data from the UK Health Security Agency (UKHSA) also shows that the number of Covid positive cases which are so mild they show no symptoms have also steadily increased since vaccines started being rolled out on mass earlier this year.
However, Chief Medical Officer Chris Whitty dismissed these early findings and called for "serious caution".
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About four in 10 Covid cases are asymptomatic, making them potential sources of increased transmission of the infectious disease, according to a study.
The study led by researchers at Peking University in China evaluated the percentage of asymptomatic infections among individuals undergoing testing (tested population) and those with confirmed Covid-19 (confirmed population).
They conducted a systematic review and meta-analysis of 95 unique studies with 29,776,306 individuals undergoing testing
The findings, published in the JAMA Network Open, showed that the asymptomatic infections were 0.25 per cent among the tested population and 40.50 per cent among the population with confirmed Covid-19.
"The high percentage of asymptomatic infections from this study highlights the potential transmission risk of asymptomatic infections in communities," said Qiuyue Ma, Department of Epidemiology and Biostatistics, from the University.
The study found that the percentage of asymptomatic infections among the confirmed population was 54.11 per cent in pregnant women and 52.91 per cent in air or cruise travellers. The percentage was 47.53 per cent in nursing home residents or staff.
This finding of a high percentage of asymptomatic infections among air or cruise travellers suggests that screening and quarantine on airport arrival is important for reducing community transmissions, especially in countries without local transmission, Ma said.
In addition, the study also showed that the percentage of asymptomatic infections was higher among groups younger than 39 years than in other age groups, possibly because the young adults were more likely to show only mild or moderate clinical symptoms. This indicated that young adults who often presented mild or no symptoms were a potential source of transmission in the community.
"Screening for asymptomatic infection is required, especially for countries and regions that have successfully controlled SARS-CoV-2. Asymptomatic infections should be under management similar to that for confirmed infections, including isolating and contact tracing," Ma said. (agency)
Read More► Early Data on Omicron Severity Encouraging: Fauci
लंदन। एक नए अध्ययन से पता चला है कि पूर्ण टीकाकरण कराए एक तिहाई लोग जिनमें सर्दी जैसे लक्षण हैं, वे वास्तव में कोविड -19 से संक्रमित हो सकते हैं। डेली मेल ने बताया कि किंग्स कॉलेज लंदन के प्रोफेसर टिम स्पेक्टर के अनुसार, नाक बहने या गले में खराश जैसे लक्षणों वाले किसी भी व्यक्ति को आइसोलेट होना चाहिए और सभी पक्षों से तब तक बचना चाहिए जब तक कि वे नेगेटिव परिणाम न प्राप्त कर लें।
उन्होंने कहा कि लोगों को 'गंध या स्वाद समाप्त होने, बुखार की प्रतीक्षा नहीं करनी चाहिए और न ही खांसी आने की प्रतीक्षा करनी चाहिए।
स्पेक्टर ने कहा, "फिलहाल, हम अनुमान लगा रहे हैं कि कहीं न कहीं तीन में से एक और चार में से एक सर्दी वास्तव में कोविड के कारण हैं।"
उन्होंने टाइम्स रेडियो को बताया कि यूके को इस बारे में जागरूक होना चाहिए कि हम किसका परीक्षण कर रहे हैं, और 'ठंड जैसे लक्षणों वाले लोगों को आइसोलेट करना चाहिए।
प्रोफेसर स्पेक्टर ने कहा कि ओमिक्रोन के प्रसार को रोकने के लिए लोगों को कुछ दिनों के लिए घर पर रहना चाहिए, अगर उनमें सर्दी के कोई लक्षण दिखाई देते हैं।
उन्होंने कहा, "इसलिए हमें ऐसे लोगों को वास्तव में लोगों को कार्यालय में नहीं आने के लिए प्रोत्साहित करना चाहिए, अगर वे अस्वस्थ महसूस कर रहे हैं तो वह क्रिसमस पार्टी में न जाएं। एक टेस्ट करवाएं और फिर, जब लक्षण कम हो जाएं, तो वे बाहर आ सकते हैं।"
रिपोर्ट में कहा गया है कि वैज्ञानिकों को उम्मीद है कि ओमिक्रॉन अधिक गंभीर लक्षण पैदा नहीं करेगा और टीकों द्वारा प्रदान की जाने वाली टी-सेल प्रतिरक्षा गंभीर बीमारी को रोक देगी। टी-कोशिकाएं एक प्रकार की श्वेत रक्त कोशिकाएं हैं जो कोविड को मारती हैं।
हालांकि, इसमें कुछ सप्ताह का समय लग सकता है क्योंकि यह देखने के लिए परीक्षण चल रहे हैं कि ओमिक्रॉन ने टीकों से प्रतिरक्षा को कितनी अच्छी तरह विकसित किया है। (एजेंसी)
Winters in India have always beckoned for that hot, steaming bowl of tomato and pepper rasam or the mellow, millet based Raab. Certain dishes like Sarson ka saag, undhiyu, nimona pulao are winter specialites in the country.
Seasonal food has always been an Indian speciality we switch our choice in fruits, vegetables, sometimes even grains with the onset of a different season. The preference of using specific ingredients during certain climates is visible in our sweets as well. It's common to find local and traditional delicacies made of jaggery, instead of sugar during the winters. Case in point the Nolen Gur Rasgulla, a speciality made in Odisha and West Bengal between November to February.
Celebrity chef, Sanjeev Kapoor, strongly advocates this need of eating seasonal produce. He says, "The beauty of our food is in our seasonal usage of fruits and vegetables. If you realise, Gajar ka halwa is made aplenty during winters as this is the season when beautiful red carrots hit the market or mango pickle is made during summer, thanks to its availability. Despite people and sometimes, even me, suggesting that we should eat fresh as well as seasonal fruits and vegetables, we do not know what chemicals are sprayed on them to keep them safe while they are growing.
When this produce hits the market, there isn't a certifying agency like the FSSAI that will help people understand what vegetables and fruits are free of pesticides and germs and which ones don't. Hence, the onus lies on us to make them safe for consumption. ITC's Nimwash is a good solution."
When it comes to winters, the Chef recommends eating these fruit and vegetables:
Purple Mogri- Mogri or Radish pods are not a common sight throughout the country. But you can spot them during the winters in local markets in northern India where women pick them up to make raitas, curries and stir fries. Rich in magnesium, calcium and copper, the vegetable is known to aid people from digestive problems.
Sweet Potato- A re-discovered favourite, Sweet potatoes have created a space for itself in the millennial kitchen. With its diverse addition in burgers, chips and even chat, the root vegetable is filled with nutrients such as fibres and vitamins.
Avarekalu- Called Hyacinth beans in English, Avarekalu is a winter speciality in the south that is added to sambhar, saagu, rotis, etc. Bangalore is famed for its Averakalu mela during the winter months, where you can find these beans in dosas, Pani puri and even Jalebis! Thronged by crowds from all over the city, the food fest is a gourmand's delight.
Amla- The Indian gooseberry is a common winter fruit found through the country. High in Vitamin C, it is known to be immunity building and extremely beneficial for the skin and hair. There are multiple ways to eat Amla - it is pickled, made into a fruit preserve called Murraba or even eaten by sprinkling salt over it.
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Many people believe that heart disease typically affects men. Unfortunately, this is far from the truth. Coronary heart disease is the leading cause of mortality not only among men, but also among women. But women are actually at greater risk if not detected early, and this exacerbates the issue.
Signs of poor heart health do not appear as visibly in women as it does in men. What this means is that if a man has a heart issue, there are specific symptoms like angina which can be spotted easily and the right course of action be recommended. The same issue in a woman may not result in a sign or symptom that can be easily spotted. So often, their symptoms go ignored or unrecognised and they do not receive timely intervention to correct the problem. The issue is so acute that today 1 in 3 deaths among women is due to coronary heart disease.
There is also a significant lack of self-awareness among women about risk factors and the prevention of CVDs. Women don't only attend to matters of the home, but they hold positions at leading companies, and continue to rise to the occasion and meet impossible demands on their time. Through all of this, they take care of the emotional needs of their family members and loved ones; and still culturally are predisposed to putting the needs of others before their own. The stress they experience, among other common risk factors, often goes unnoticed by those around them. And stress has a greater influence on CVD risk in women vs men. Along with stress, other factors like diet quantity and quality also have a greater influence on CVD risk in women vs men. Additionally, women are also impacted by female-specific risk factors for CVD like polycystic Ovarian syndrome PCOS, preeclampsia, pregnancy induced hypertension and gestational diabetes.
In such a situation where symptoms of a heart problem do not manifest visibly, it is extremely important for women to be aware of their own risk factors and adopt proactive measures to take care of their heart health. For example, one risk factor, stress has been linked to a greater intake of energy and nutrient-dense foods, mainly sources of sugar and fat, and to poor diet quality. Women can take simple steps like reducing unhealthy fats and products with high content of sugar and salt to improve the quality of their diet. Choose ingredients that are good for the heart, like oatmeal, wholegrains, fiber rich vegetables, blended oils with the right balance of fatty acids, legumes, soy products, and the like. Regular and consistent exercise, adequate sleep, and other such lifestyle modifications can help maintain heart health in the long term.
Furthermore with signs of poor heart health not manifesting visibly in women, it is crucial that they get regular health check-ups done to assess their risk proactively. Self-awareness and early identification of cardiovascular risk factors can lead to better prevention of CVD in women.
This World Heart Day, let's choose self-care. Get a simple heart check-up done and encourage other women in yourselves too, to get the same done. Take proactive steps for heart health today.
(By Brajesh Kunwar)
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