science & technology Online Quiz - 146

HIV tests detect antibodies produced by the immune system in response to HIV infection, not the virus itself. RNA, DNA, and T-cell counts are not what standard antibody tests identify.

A CD4 count of 200 or below indicates significant immune system damage and is a criterion for AIDS diagnosis. At this stage, antiretroviral treatment is critical to prevent opportunistic infections.

Arthur Ashe, the tennis legend who won three Grand Slam titles, died from AIDS-related complications in 1993 after receiving a tainted blood transfusion. Neither George Best nor Flo-Jo died from AIDS.

Nevirapine is a key antiretroviral drug used in prevention of mother-to-child transmission (PMTCT) programs. It can be given as a single dose to the mother during labor and to the newborn after birth.

Oil-based lubricants can weaken and break down latex condoms, making them ineffective. Water-based or silicone-based lubricants are safe - latex and polyurethane condoms themselves are effective HIV prevention tools.

The window period is the time between initial HIV infection and when the virus becomes detectable by standard tests. During this time, a person may be infected but test negative.

HIV can be transmitted through contaminated equipment used for body piercing or tattooing if needles are not properly sterilized between clients. Blood-to-blood contact is a transmission route.

Contraceptive pills only prevent pregnancy, not HIV or other STIs. Condoms are still necessary for protection against sexually transmitted infections regardless of other birth control methods.

ART can be discontinued in specific circumstances such as severe side effects, treatment failure, or under medical supervision for structured treatment interruptions. However, this is not common practice and requires careful monitoring.

Pre-test counseling ensures informed consent and prepares patients for potential outcomes, while post-test counseling provides psychological support and connects patients to care regardless of the test result. Both are essential components of ethical HIV testing protocols.

Symbian was a mobile operating system and software platform, designed exclusively for smartphones. The company focused on the mobile space, not aviation or general internet solutions.

The Symbian platform did become open source in 2009. The Symbian Foundation released the source code under the Eclipse Public License, making it freely available for developers.

Symbian's board of directors included major telecommunications companies like AT&T Mobility (from the US) and NTT DOCOMO (from Japan), among others like Nokia, Samsung, and Sony Ericsson.

Fujitsu Limited WAS a member of Symbian's board of directors. The statement claims Fujitsu is 'not' in the board, which is false - hence the correct answer is False (they WERE in the board).

Symbian Software Ltd. was formed on June 24, 1998 as a joint venture between Psion (which had the EPOC OS) and mobile phone manufacturers Nokia, Ericsson, and Motorola.

Symbian OS was announced in 1998 as a collaboration between Psion (creator of EPOC OS), Ericsson, Motorola, and Nokia. Psion provided the foundation OS technology (EPOC) that became Symbian.

Sony Ericsson used the UIQ (User Interface Quartz) interface layer on Symbian OS. UIQ was a touchscreen-oriented user interface platform used by Sony Ericsson and Motorola, while Nokia used S60.

Nokia announced in 2008 that it would acquire 52% of Symbian Software Ltd. This was part of Nokia's strategy to fully control the Symbian operating system, which was the leading smartphone OS at the time. The other options (45%, 48%, 51%) are not the correct percentage announced.

The Symbian Foundation Ltd was registered on August 28, 2008. This was shortly after Nokia announced its intention to acquire Symbian and make it open source. The other dates (Dec 19, May 13, Mar 9) are not the registration date.