Science & Technology Current Affairs MCQs

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The Drugs Controller General of India (DCGI) has approved Qdenga for individuals aged 4–60 years, making it India’s first dengue vaccine. Qdenga is a live-attenuated, tetravalent vaccine developed by Takeda Pharmaceutical, Japan. It targets all four dengue virus serotypes (DENV-1 to DENV-4), with strongest efficacy against DENV-2 and relatively lower against DENV-3 and DENV-4. It does not require pre-vaccination screening and is administered in two doses, spaced three months apart. The vaccine provides strong protection against severe dengue and reduces hospitalisation rates.

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Hib (Haemophilus influenzae type b) disease is resurging in the United States due to declining childhood vaccination rates. It is caused by the bacterium Haemophilus influenzae type b infection and mainly affects children under 5 years. It can cause mild infections (ear infections, bronchitis) and severe diseases like meningitis and bloodstream infections. Despite its name, it does not cause influenza (flu). Transmission occurs through respiratory droplets (coughing, sneezing) and close contact. Symptoms vary depending on the infected body part; severe cases may lead to death or long-term complications.

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Anthropic launched Project Glasswing to secure critical software infrastructure using advanced AI systems. The initiative involves a global coalition of major tech firms including Amazon Web Services, Apple, Google, Microsoft, and NVIDIA. It uses Claude Mythos Preview, an advanced AI model, to detect and fix software vulnerabilities across sectors like banking, healthcare, and telecom. The model has identified critical flaws in operating systems and browsers, including vulnerabilities undetected for years.

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Keytruda is an immunotherapy drug (pembrolizumab) used globally to treat cancers such as lung, cervical, renal cell, and aggressive breast cancer. It is manufactured by Merck & Co. and belongs to a class of drugs called checkpoint inhibitors. It is a monoclonal antibody, meaning it is a laboratory-made molecule designed to target specific cancer-related proteins. It blocks PD-1 receptors on T-cells, preventing interaction with PD-L1 on cancer cells, thereby enabling the immune system to attack cancer cells. In India, it is available in tertiary care hospitals, while indigenous CAR-T therapy like NexCAR19 has also been developed for cancer treatment.

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Bharat Aluminium Company Limited, a unit of Vedanta Aluminium, has deployed ALAISA (Aluminium AI Support Agent: Artificial Intelligence-based assistant for industrial support). ALAISA is a humanoid, AI-powered assistant designed to enhance shop-floor efficiency, safety, and workforce capability. It is operational at BALCO’s Chhattisgarh smelter and acts as a real-time training and decision-support interface. It provides guidance on SOPs (Standard Operating Procedures: step-by-step work instructions), SMPs (Standard Maintenance Practices), and safety protocols.

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Researchers from the University of Cambridge have developed a hafnium-oxide memristor, a brain-inspired nanodevice that can significantly reduce Artificial Intelligence (AI) energy consumption. A memristor (memory + resistor) is an electronic component whose resistance depends on past current flow, enabling it to “remember” previous electrical states. Unlike a conventional resistor, a memristor has variable resistance and retains its state even when the current is switched off. Memristors are nanoscale devices with low energy requirements and are commonly made using materials like titanium dioxide (TiO₂) between metal electrodes.

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Herbalife India and Indian Institute of Technology Madras signed a Memorandum of Understanding on 17 April 2026 to establish a new research facility. The initiative sets up India’s first Centre of Excellence on Plant Cell Fermentation Technology at IIT Madras Research Park, Chennai. The centre aims to promote research, innovation, and entrepreneurship in sustainable production of herbal biomass and phytochemicals. It focuses on plant cell fermentation for scalable and eco-friendly production of compounds for health and wellness.

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A recent DNA study of a pre-Hispanic mummy found that the bacteria causing scarlet fever existed in the Americas even before European colonization. Scarlet Fever, also called scarlatina, is a bacterial infection caused by Group A Streptococcus, which also causes strep throat and skin infections. It mainly affects children aged 5 to 15 years and is characterized by a bright red rash, sore throat, and high fever. The disease is highly contagious and spreads through respiratory droplets from coughing or sneezing. There is no vaccine, but it is effectively treated with antibiotics such as penicillin, and untreated cases may lead to serious complications affecting the heart and kidneys.

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Institute of Nano-Science and Technology, Mohali, developed a new material to detect nicotine and cotinine using fluorometric sensing. Fluorometric sensing is a technique that measures substances through fluorescent emission. The material “lights up” on contact with nicotine/cotinine, enabling quick detection. It is based on Iron-based Metal-Organic Framework (Fe-MOF), a nano-structured porous material. It detects even small amounts accurately, improving over traditional methods. The material is biocompatible (safe for living cells) and works at in-vitro stage.

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Jordan recently signed the Artemis Accords at NASA Headquarters, expanding global participation in space governance. The Artemis Accords were launched in 2020 as a non-binding framework for guiding civil space exploration. It was co-led by NASA and the US Department of State along with founding nations like Australia, Japan, and the UK. India is also a signatory, highlighting its role in global space cooperation. The accords promote peaceful exploration and responsible use of outer space.