HIV/AIDS and Technological Inventions

John Logie Baird, the Scottish inventor, gave the first public demonstration of television in 1926. His mechanical television system was a groundbreaking achievement in broadcast technology. The other names are fabricated or incorrect.

John Logie Baird gave the first public demonstration of television at Soho, London in 1926. Soho was the location of his laboratory where the demonstration took place. The other locations are incorrect.

The first traffic lights were introduced in London in 1868, installed outside the Houses of Parliament. They were gas-lit and operated manually. This predated the first electric traffic lights in the United States (1914). The year 1868 is correct.

Windmills were first used historically in Persia (modern-day Iran) around the 7th century AD. The Persian windmill was a vertical-axis design used for grinding grain. Iran is the correct answer from the options given.

The windmill originated in Persia around 644 AD. This early Persian windmill design was vertical-axis and used primarily for grinding grain and pumping water. The year 644 aligns with the historical timeline of this invention's emergence in the Islamic Golden Age.

Historical evidence indicates that eyeglasses were invented in China during the late 13th century (around 1290). Early Chinese versions used quartz lenses and frames, preating their later development in Italy (around 1286-1290) and subsequent spread to Europe.

Current HIV/AIDS treatments, particularly antiretroviral therapy (ART), can effectively suppress the virus, manage symptoms, and significantly improve quality of life and life expectancy. However, these treatments cannot completely cure HIV - the virus remains in the body and can rebound if treatment is stopped.

HIV (Human Immunodeficiency Virus) is the virus that attacks the immune system, while AIDS (Acquired Immunodeficiency Syndrome) is the late stage of HIV infection that occurs when the immune system is severely damaged. A person can live with HIV for many years without developing AIDS, especially with proper treatment.

HIV is transmitted through direct contact with infected blood, semen, vaginal fluids, or breast milk. Casual contact like shaking hands, hugging, sharing toilets, or being near coughing/sneezing cannot transmit HIV. However, activities involving blood contact like caring for nosebleeds or open-mouth kissing when blood is present can transmit the virus.

The World AIDS Day theme for 2010 was 'Universal Access and Human Rights,' emphasizing the importance of ensuring universal access to HIV prevention, treatment, care, and support while protecting human rights. Other themes listed were from different years: 'One World. One Hope' (1996), 'I care. Do you?' (2001-2002), and 'AIDS: Men Make a Difference' (2000).

The red ribbon has been the international symbol of HIV/AIDS awareness and solidarity since 1991, when it was created by the Visual AIDS Artists Caucus. It represents support for people living with HIV and commitment to fighting the epidemic. Pink ribbons represent breast cancer awareness, white ribbons represent various causes including peace movements, and black ribbons are used for mourning and tragic loss.

Tata Consultancy Services (TCS) established 'Club Red: Let's Talk' as their corporate initiative to raise HIV/AIDS awareness among employees. The program aims to educate about HIV/AIDS, combat stigma, and encourage open dialogue about the disease in the workplace. Red Ribbon Club is a more generic name used by many institutions.

Mosquitoes cannot transmit HIV. When a mosquito bites someone, it injects its own saliva, not blood from the previous person. HIV cannot survive in mosquitoes' digestive systems - the virus is broken down as food. The mouth parts of mosquitoes are also too small to contain enough HIV particles to cause infection.

HIV is transmitted through bodily fluids containing high concentrations of the virus. Blood, semen, vaginal fluid, preseminal fluid, and breast milk are all established transmission routes. Saliva, tears, and sweat are NOT transmission routes.

Red Ribbon Express is an HIV/AIDS awareness campaign launched by the Indian Railways in collaboration with NACO (National AIDS Control Organisation). It is a train that travels across India spreading awareness about HIV prevention.

HIV specifically targets and destroys CD4+ T cells (helper T cells), which coordinate immune responses. It also infects macrophages and dendritic cells, which serve as reservoirs and transport the virus. All three cell types are crucial in HIV pathogenesis.

Direct contact with HIV-infected blood through open wounds, cuts, or mucous membranes is a documented transmission route. Healthcare workers can be exposed through needlestick injuries, and transmission can occur through blood-to-blood contact.

PEP (Post-Exposure Prophylaxis) is a 28-day course of antiretroviral medication taken after potential HIV exposure to prevent infection. It must be started within 72 hours of exposure, ideally within 24 hours. It is NOT prevention or prescription-related.