In the Case of HIV Infection by Sexual Transmission, a Key

question 11

Multiple Choice

In the case of HIV infection by sexual transmission, a key step in the establishment of disseminated HIV infection is the replication of the virus in regional lymph nodes draining the mucosal site of initial virus entry. The ability of the virus to spread from the mucosa to the regional lymph node is made possible by:

• A) The high viral titers generated by the initial replication in the mucosal tissue
• B) The virus' ability to infect migratory cells that carry it from the mucosa to the lymph node
• C) The ability of infected CD4 T cells from the transmitting individual to proliferate and spread in the recipient's GALT
• D) The extremely high titers of HIV required for transmission from one individual to the next
• E) The resistance of virus in the mucosal tissue to elimination by antiretroviral drugs

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Definitions:

Exports

Items or services transferred from one country to another for commerce or trading.

Imports

Goods and services brought into a country from abroad for sale.

Trade Deficit

It occurs when a country's imports exceed its exports over a certain period, leading to more money leaving the country than entering it.

High Tariffs

Elevated taxes imposed on imported goods to protect domestic industries by making foreign products more expensive compared to local products.