Vector Borne Diseases

Flashcards covering key concepts related to vector-borne diseases, vectors, and control methods.

What are vector-borne diseases?

Diseases that require a vector, typically arthropods like ticks or mosquitoes, for transmission.

What is Integrated Vector Management (IVM)?

A strategy to manage vector populations and diseases through ecological, organismal, and molecular approaches.

What types of pathogens are transmitted by Aedes mosquitoes?

Viruses and nematodes including Chikungunya, Dengue, and Zika.

How long does it take Aedes larvae to develop into adults?

Approximately 7 days.

What were the main health measures to control the Zika pandemic in 2015-2016?

Mosquito control programs and improving access to care.

What distinguishes DENV infection from other dengue serotypes?

Infection confers immunity only to the same serotype.

What are the symptoms of severe dengue?

Bleeding gums, blood in vomit, severe abdominal pain, and rapid breathing.

What is the role of Wolbachia bacteria in vector control?

It reduces the ability of mosquitoes to transmit viruses.

What is SIT in vector control?

Sterile Insect Technique, which involves releasing sterilized males to reduce population.

What are the three subspecies of Trypanosoma brucei?

T. b. brucei, T. b. gambiense, and T. b. rhodesiense.

What is the main vector for Human African Trypanosomiasis?

The tsetse fly.

What are WHO's targets for eliminating gHAT?

Eliminate as a global health problem by 2030, along with ensuring zero transmission.

What technologies are emerging for vector control?

Gene drives, Sterile Insect Technique (SIT), and Incompatible Insect Technique (IIT).

What is the transmission cycle of dengue via Aedes mosquitoes?

The virus infects the midgut of the mosquito after a blood meal, leading to symptoms in humans 4-7 days post-infection.