Science & Technology Current Affairs MCQs

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In July 2025, Kerala’s rubber plantations faced a major threat from a beetle-fungus alliance causing severe leaf fall, tree drying, and reduced latex output. Researchers at the Kerala Forest Research Institute, Thrissur, identified the parasite as the ambrosia beetle (Euplatypus parallelus). It hosts two fungi — Fusarium ambrosia and Fusarium solani, marking the first report of F. solani with adult ambrosia beetles. The beetles bore tunnels in trees, farm fungi, and feed on fungal mycelia, while fungi weaken the tree’s structure with enzymes. These beetles were first reported in India in 2012 from cashew trees in Goa.

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A team at National Institute of Technology (NIT) Calicut has recently developed a low-cost, highly sensitive point-of-care device for early detection of sepsis. The device uses an electrochemical biosensor to detect endotoxins, which are key biomarkers of infection from Gram-negative bacteria. Sepsis is a life-threatening condition that can cause organ failure, shock, and even death if not treated early. The device can detect Lipopolysaccharide (LPS), a toxic component of bacterial membranes, within 10 minutes using blood serum.

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Recently, ISRO is preparing to launch three navigation satellites for the Indian Regional Navigation Satellite System (IRNSS) by next year. Indian Regional Navigation Satellite System (IRNSS), also called Navigation with Indian Constellation (NavIC), is developed by Indian Space Research Organisation (ISRO). It is an independent and fully indigenous satellite navigation system, under India’s full control. Indian Regional Navigation Satellite System (IRNSS) was designed as a 7-satellite constellation to cover India and 1,500 km around it.

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Recently, 16 chitals (spotted deer) died at Rajiv Gandhi Zoological Park in Pune due to Foot and Mouth Disease (FMD), as confirmed by lab reports. Foot and Mouth Disease (FMD) is a highly contagious viral disease affecting all cloven-hoofed animals like cattle, goats, sheep, deer, and pigs. It is caused by an aphthovirus from the Picornaviridae family. The World Organisation for Animal Health (WOAH) first gave official recognition to this disease.

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In July 2025, five confirmed cases of Legionnaires’ disease were reported in Central Harlem, New York City. The New York City Department of Health launched an urgent investigation into possible environmental sources. Cooling towers, air conditioners, hot tubs, and humidifiers are being tested for Legionella bacteria. Legionnaires’ disease is a severe type of pneumonia caused by Legionella bacteria. The bacteria are found in natural water sources like lakes, rivers, and soil, and can spread through inhaling contaminated water droplets. It is not contagious and cannot spread from person to person.

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Recently, Kerala’s health department issued an alert in Kozhikode after three cases of Primary Amoebic Meningoencephalitis (PAM) were reported. Primary Amoebic Meningoencephalitis (PAM) is a brain infection caused by Naegleria fowleri, also called the “brain-eating amoeba.” This amoeba lives in warm freshwater, soil, swimming pools, hot tubs, and infects through the nose. It mainly affects young, active people and has a mortality rate above 95%. Primary Amoebic Meningoencephalitis (PAM) progresses rapidly and is often fatal within days, while Granulomatous Amebic Encephalitis (GAE) progresses slowly.

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Seaweed farming has emerged as a potential Blue Carbon strategy, but empirical estimates of carbon burial from these farms are still limited. Blue Carbon refers to organic carbon captured and stored by oceans in vegetated coastal ecosystems such as mangrove forests, saltmarshes, and seagrass meadows. The term “Blue” highlights the watery nature of this carbon storage. Most blue carbon is carbon dioxide dissolved directly into the ocean. These ecosystems cover 2% of the ocean surface but account for 50% of the ocean’s carbon absorption. Blue carbon ecosystems are crucial for global climate change mitigation.

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The Department of Health and Human Services recently confirmed the first human case of the flesh-eating parasite, the New World screwworm, in the United States. New World screwworm is a blue-grey blowfly usually found in South America and the Caribbean. Its larvae burrow screwlike into living tissue, causing dangerous infestations. Female flies lay eggs in open wounds or cavities, with up to 3,000 eggs in their lifespan. Symptoms include non-healing wounds, bleeding, foul smell, and sensation of movement. Infestation is extremely painful and can be fatal if untreated.

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Gaza has recently reported a surge in Guillain-Barré Syndrome (GBS), raising health concerns. Guillain-Barré Syndrome (GBS) is a rare autoimmune condition where the immune system attacks the peripheral nervous system. The peripheral nervous system controls muscle movement, pain, temperature, and touch sensations. It is also called Acute Inflammatory Demyelinating Polyradiculoneuropathy (AIDP). It commonly affects people between 30 and 50 years of age. It usually follows viral or bacterial infections, vaccination, or surgery.

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The Department of Animal Husbandry & Dairying (DAHD) under the Ministry of Fisheries, Animal Husbandry & Dairying has recently issued the Revised National Action Plan on Glanders. Glanders is caused by the bacterium Burkholderia mallei and mainly affects equines like horses, mules, and donkeys, with risks to other animals and humans. It causes nodules and ulcerations in the respiratory tract and lungs, with a skin form known as farcy. Transmission occurs through contaminated food or water, infected harness equipment, or horse meat. It is a World Organisation for Animal Health (WOAH)-listed disease and must be notified under the WOAH Terrestrial Animal Health Code.