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New method developed to forecast dengue spread

Published

8 years ago

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Study of daily and monthly mean temperatures in different climatic zones can help track incubation period of dengue virus

By Dr. Shikha T. Malik

Given its close link with both temperature and rainfall, it is possible to forecast an outbreak of dengue. But for such disease forecasting to be effective, it should be based on models specific for different climatic zones in the country, a new study has shown.

Scientists have reached this conclusion after evaluating the relationship of climatic factors in the spread of dengue in different climatic zones in the country – Punjab, Haryana, Rajasthan, Gujarat and Kerala. They focused on changes in a factor called ‘extrinsic incubation period (EIP)’ of the dengue virus by taking into account daily and monthly mean temperatures in these areas.

EIP is the time taken for incubation of the virus in the mosquito. During this period, after the mosquito draws virus-rich-blood meal, the virus escapes the gut, passes through the mosquito’s body and reaches it salivary glands. Once this happens, the mosquito is infectious and capable of transmitting the virus to a human host.

It has been found that climatic conditions play an important role in EIP. Lower temperatures (17–18 °C) result in longer EIPs thereby leading to decreased virus transmission. With increasing temperatures, feeding increases because of enhanced metabolism of the mosquito, leading to shorter EIPs. Even a 5-day decrease in the incubation period can hike transmission rate by three times, and with an increase in temperature from 17 to 30 °C, dengue transmission increases fourfold. However, a further increase in temperature beyond 35 °C is detrimental to the mosquito survival.

The study has been jointly done by the Hyderabad-based Indian Institute of Chemical Technology (IICT), National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, in collaboration with scientists at the University of Liverpool.

The researchers observed that except for Gujarat which comprises of arid regions, there was a strong correlation between rainfall and dengue disease burden. They propose an increase in breeding grounds for mosquitoes as a major reason for this finding.

The study found that Kerala being warm (temperature range 23.5-30 °C) and wet and with short EIPs (9-14 days) experiences the highest number of dengue cases. It has been found that EIP is the shortest during the monsoon season in most states and therefore there is an enhanced risk of dengue during this time.

Researchers say it is important to take into account the dynamic EIP estimates in different regions in assessing disease burden. “This climate-based dengue forecasting model could help health authorities to assess the disease intensity in a geographic region, based on that they can plan disease control operations well in advance and optimize the use of resources meticulously,” explained Dr. Srinivasa Rao Mutheneni of IICT, who led the study.

With changes in temperature affecting the extrinsic incubation period of the virus, future changes in the climate might have a substantial effect on dengue and other vector-borne disease burden in India. “Though such methods are in vogue for disease control operations, we are still in the initial stages of implementation of such strategic control methods,” Dr Rao told India Science Wire. Factors such as population density and migration also need to be included for future risk assessment studies.

The research team included Srinivasa Rao Mutheneni, Andrew P Morse, Cyril Caminade and Suryanaryana Murty Upadhyayula. The study was published in journal Emerging Microbes & Infections.

(This article has been taken from a syndicated feed provided by the India Science Wire)

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OnePlus Freedom Sale 2026 brings discounts on 15, 15R, 13, Nord 5 and tablets

OnePlus Freedom Sale 2026 begins Jan 16 with discounts on phones, tablets, and audio products across online and offline stores.

Published

7 hours ago

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January 13, 2026

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OnePlus has announced its Freedom Sale, offering discounts on smartphones, tablets, and audio products across online and offline platforms. The deals include the recently launched OnePlus 15 series, Nord lineup, Buds audio devices, and other gadgets.

When and where to shop

The OnePlus Freedom Sale starts on Jan. 16 and will run both online and offline. Shoppers can purchase smartphones through OnePlus.in, OnePlus Experience Stores, Amazon, as well as offline retailers including Croma, Reliance Digital, Vijay Sales, and others. Tablets are available on Flipkart during the sale period.

Discounts on OnePlus smartphones

  • OnePlus 15: Launched at Rs 72,999, buyers can get an instant Rs 4,000 discount, lowering the effective price to Rs 68,999. Additional benefits include six months of no-cost EMI and a bundled OnePlus Nord Buds 3.
  • OnePlus 13: Originally priced at Rs 69,999, the phone receives an Rs 8,000 price drop, plus a bank discount of Rs 4,000, bringing the price down to Rs 57,999.
  • OnePlus 15R: Listed at Rs 47,999, buyers can avail Rs 3,000 off until Jan 26. After the date, the effective price is Rs 45,999.
  • OnePlus 13R: Launched at Rs 42,999, this device gets up to Rs 6,000 price cut and an additional Rs 1,000 bank discount.

Discounts on OnePlus tablets

  • OnePlus Pad 2: Rs 2,000 instant bank discount reduces the price to Rs 34,999.
  • OnePlus Pad 3: Eligible for a Rs 3,000 instant discount, making the price Rs 44,999. Purchases until Jan 26 include a free Stylo 2 stylus.
  • OnePlus Pad Go 2: Rs 1,000 price drop plus Rs 2,000 bank discount, now Rs 23,999.
  • OnePlus Pad Go: Price reduced to Rs 13,999 after Rs 3,000 cut and Rs 1,000 bank discount.
  • OnePlus Pad Lite: Available for Rs 11,999 after a Rs 2,000 price drop and Rs 2,000 bank discount.

Audio devices on offer

  • OnePlus Buds 4: Rs 700 price cut with Rs 300 bank discount, bringing the effective price to Rs 4,999.
  • OnePlus Buds Pro 3: Now Rs 9,999 after Rs 1,000 price drop and Rs 1,000 bank discount. No-cost EMI options are available for both Buds 4 and Buds Pro 3.

Additional discounts are also applicable to the Nord Buds series — including Nord Buds 3, Nord Buds 3 Pro, and Nord Buds 3R — and neckband devices such as Bullets Wireless Z2 ANC and Bullets Wireless Z3.

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Oppo Reno 15 likely to launch in India soon with upgraded camera and performance features

Oppo is preparing to launch the Reno 15 series in India, focusing on camera improvements, performance stability and a refined design. Here’s what to expect from its pricing and features.

Published

1 month ago

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December 8, 2025

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Oppo is gearing up to introduce its Reno 15 lineup in India, with the series expected to focus heavily on enhanced imaging, performance stability and creator-friendly tools. The smartphone, which has already been launched in China, is anticipated to reach the Indian market in the coming weeks although the company has not yet shared an official date.

Expected price range in India

Industry estimates suggest the standard Oppo Reno 15 will fall in the upper-mid price bracket. While the Reno 15 Pro was launched in China at CNY 3,699 (roughly Rs 46,000), the Reno 15 base model is expected to be more affordable, likely between Rs 32,000 and Rs 38,000, depending on RAM and storage configurations.

Expected features and specifications

The Reno 15 series is expected to highlight Oppo’s improvements in sustained performance, camera capabilities and thermal management. Globally, the models run on ColorOS 16 and feature advanced cooling, particularly aimed at gaming and continuous live-streaming use.

For India, the upcoming Oppo Reno 15 is likely to offer:

  • A high-refresh-rate AMOLED display
  • Triple-camera setup with a primary sensor optimized for better low-light clarity
  • Secondary wide-angle and portrait cameras
  • Front camera with autofocus and AI-led enhancements for live streaming
  • Around 5,000mAh battery with fast wired charging support
  • AI-driven system optimization for smoother long-term performance

Design-wise, it is expected to follow the Reno 15 Pro’s flat-frame style, offering a slim profile, improved durability and brighter display output. With growing demand for creator-focused smartphones in the country, the Reno 15 is being positioned for users interested in mobile photography, vlogging and gaming.

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Samsung Galaxy S25 FE India price leak suggests launch similar to S24 FE

Samsung Galaxy S25 FE India price has surfaced online, hinting at a similar launch price as the S24 FE. The phone brings a 6.7-inch AMOLED display, Exynos 2400 chip, triple rear cameras, and a 4,900mAh battery.

Published

4 months ago

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September 11, 2025

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Samsung Galaxy S25 FE, which was unveiled globally on September 4, is yet to receive official pricing for the Indian market. However, a fresh leak indicates that the handset could debut in India at the same price point as its predecessor, the Galaxy S24 FE.

Expected price and availability in India

According to tipster Yogesh Brar, the Samsung Galaxy S25 FE may be priced at ₹59,999 for the base 8GB RAM + 128GB storage variant in India. This matches the launch price of last year’s Galaxy S24 FE, which started at ₹59,999 for the same configuration. The higher 8GB RAM + 256GB model of the S24 FE was earlier priced at ₹65,999.

Globally, the Galaxy S25 FE has been introduced at $650 (around ₹58,000) for the base variant and $710 (around ₹63,000) for the 8GB + 256GB version. In India, the smartphone is expected to go on sale in October, similar to last year’s rollout schedule for the S24 FE.

The phone is offered in Icyblue, Jetblack, Navy, and White colour options.

Key specifications

  • Display: 6.7-inch full-HD+ Dynamic AMOLED 2X, 120Hz refresh rate, 1,900 nits peak brightness, Vision Booster, Gorilla Glass Victus+ protection.
  • Processor: Exynos 2400 SoC.
  • RAM & Storage: 8GB RAM standard, up to 512GB UFS 4.0 storage.
  • Rear Cameras: 50MP wide-angle + 8MP telephoto + 12MP ultrawide; 8K video recording at 30fps.
  • Front Camera: 12MP selfie shooter.
  • Battery: 4,900mAh with 45W wired and 15W wireless charging.
  • Build: 7.4mm thick, 190g weight, IP68-rated water and dust resistance.
  • Cooling: 10% larger vapour chamber compared to the Galaxy S24 FE.

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