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DISEASE&TOPICS

Public Education Series: What Are the Control Strategies for STH?

The foundational and most cost-effective long-term control strategy for soil-transmitted helminths is systematic fecal management, which targets the root of STH transmission by preventing untreated human feces from contaminating residential soil, farmland and water sources.
Public Education Series: What is the treatment for STH?

The standard first-line treatment for soil-transmitted helminth infections relies on a single oral dose of one of four WHO-recommended safe, cost-effective anthelmintic drugs, which have been widely validated in global public health campaigns with minimal side effects for all eligible populations.
Public Education Series: What Are the Health Problems Caused by STH?

Hookworms, the most common STH species that trigger chronic anemia, attach firmly to the intestinal mucosal wall with their specialized mouthparts and secrete anticoagulant substances to continuously feed on human blood. Each adult hookworm causes 0.02 to 0.05 milliliters of daily blood loss,
Public Education Series: What Are the Symptoms of STH?

Most STH infection symptoms are highly nonspecific, and only become clinically obvious when the worm burden in the human intestine reaches a severe level. The most common mild, non-specific manifestations include persistent nausea, unexplained tiredness, intermittent abdominal pain and gradual loss of appetite, which are often misdiagnosed as common gastrointestinal discomfort or general fatigue in low-resource endemic areas.
Public Education Series: How Do I Avoid Getting Soil-transmitted Helminths?

A critical fact that underpins all prevention efforts is that direct person-to-person transmission of soil-transmitted helminths (STH) is impossible, and no infection can be contracted from fresh human feces. The parasite eggs shed in infected people’s feces require a full 2 to 3 weeks of maturation in warm, humid soil to develop into the infectious stage
Public Education Series: How Do I Get Soil-transmitted Helminths (STH)?

The entire STH transmission cycle is tightly linked to poor sanitation infrastructure in under-resourced communities. Infected people shed thousands of STH parasite eggs in their feces every day, and in areas without properly constructed latrine systems, human waste is directly discharged into the surrounding environment, contaminating village soil, farmland and residential yards
Public Education Series: What Is Soil-transmitted Helminths?

Soil-transmitted helminths (STH) are among the most widespread neglected tropical diseases globally, disproportionately affecting the poorest and most underserved communities with inadequate sanitation infrastructure.
Public Education Series: What Are the Control Strategies for Leishmaniasis?

Leishmaniasis control is a highly customized public health system project that must be tailored to local conditions, rather than adopting a one-size-fits-all universal model. Key influencing factors
Public Education Series: What Can I Do to Prevent Leishmaniasis Infection?

The only proven effective way to avoid leishmaniasis infection is to prevent bites from infected female phlebotomine sandflies carrying the Leishmania parasite.
Public Education Series: What Is the Treatment Against Leishmaniasis?

VL treatment prioritizes complete parasite clearance to prevent fatal complications, reduce long-term relapse risk, and curb the spread of drug-resistant parasite strains. The traditional first-line regimen in non-resistant endemic regions uses pentavalent antimony compounds at a standard dose of 20mg/kg per day for 30 consecutive days
Public Education Series: How Is Leishmaniasis Diagnosed?

eishmaniasis diagnosis follows a tiered system tailored to the capabilities of different health facilities, ranging from rapid point-of-care tests in remote primary health centers to high-precision molecular assays in specialized reference laboratories. Parasitological confirmation
Public Education Series: What Are the Signs and Symptoms of Cutaneous and Mucocutaneous Leishmaniasis?

Core Clinical Traits of Cutaneous Leishmaniasis (CL) Key Features of Mucocutaneous Leishmaniasis (MCL)
Public Education Series: What Are the Signs and Symptoms of Visceral Leishmaniasis (VL) and PKDL?

Visceral Leishmaniasis (VL, Kala-azar) Core Symptoms Post-Kala-Azar Dermal Leishmaniasis (PKDL) Key Features
Public Education Series: How Long Does It Take for Leishmaniasis to Develop After Infection?

The incubation period of leishmaniasis, the window between an infected sandfly bite and the appearance of first clinical symptoms
Public Education Series: Why Is Leishmaniasis Important?

Leishmaniasis poses a severe, long-lasting threat to human health across 98 endemic countries, with vastly different impacts depending on its three clinical forms. Cutaneous leishmaniasis, the most widespread variant, causes persistent painless skin ulcers and so on.
Public Education Series: How Are Leishmania Parasites Transmitted?

Leishmania parasites rely almost entirely on the bite of infected female phlebotomine sandflies to complete their natural transmission cycle.
Public Education Series: What Is Leishmaniasis?

Leishmaniasis is a widespread, neglected tropical zoonotic disease caused by over 20 distinct species of the protozoan parasite Leishmania, transmitted almost exclusively through the bite of infected female phlebotomine sandflies.
Public-Education Series: What Is Personal and Household Protection for Dengue and Severe Dengue?

While community-wide source reduction targets mosquito breeding at its origin, individual protection focuses on creating a personal barrier between you and the Aedes mosquito—the sole vector that transmits dengue.
Public-Education Series: What Can Be Done to Reduce the Risk of Acquiring Dengue?

In the fight against dengue, the most sustainable and effective strategy is not to treat the disease after it appears, but to prevent transmission at its source by targeting the Aedes mosquito where it breeds.
Public-Education Series: Who Spreads Dengue and Severe Dengue?

Dengue fever is not contagious between humans through casual contact, coughing, or shared surfaces—its entire transmission cycle depends on a specific, highly efficient mosquito vector: the female Aedes aegypti.

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