Some of the world’s deadliest diseases aren’t seen in history books or health journals—they remain a serious concern today. In the Philippines alone, thousands of people each year suffer from viral infections that can lead to life-threatening complications. Yet, despite medical advancements, many of these illnesses remain alarmingly persistent.
These diseases thrive for complex and concerning reasons. In densely populated areas, certain viruses can spread quickly, while limited access to healthcare and a lack of public awareness create fertile ground for outbreaks. Additionally, the often-undetected and fast-moving nature of these illnesses makes controlling them a significant challenge, impacting not just individuals but entire communities.
The good news, however, is many of these infections can be avoided with the right knowledge and proactive measures. In that regard, this article explores five viral diseases that, while potentially deadly, are also easily preventable—helping you understand their risks and what you can do to stay protected.
Dengue Fever
Dengue fever, often called "breakbone fever," lives up to its name, causing symptoms like raging fever, intense joint pain, and severe exhaustion. In its most severe form, dengue can even lead to internal bleeding, organ failure, and death.
Unlike some viral diseases that spread from person to person, dengue is transmitted through the bite of an infected Aedes mosquito, making it especially difficult to contain in tropical regions. This is especially true in the Philippines, where thousands of cases are reported each year.
Since there is no direct cure for dengue, prevention is your strongest defense. Protect yourself by eliminating mosquito breeding sites. Empty stagnant water from containers, use mosquito repellents, and wear long-sleeved clothing when outdoors. If you develop symptoms, seek medical attention immediately, as early detection can mean the difference between a mild case and a medical emergency.
Measles
Measles may be thought of as a disease of the past, but outbreaks still happen—often with severe consequences. In 2023, the World Health Organization (WHO) warned of a global measles resurgence, with the Philippines among the countries at risk. This highly contagious virus spreads through coughing, sneezing, and even lingering droplets in the air, making it one of the fastest-spreading infections.
The initial symptoms can be mistaken for a regular fever—runny nose, cough, and red eyes. However, within days, a distinct rash appears, which can indicate the virus has begun to cause internal damage. Measles can weaken the immune system for months, leaving people vulnerable to dangerous complications like pneumonia, brain inflammation, and even death.
To avoid these consequences, vaccination is key. The measles vaccine is safe, effective, and widely available, offering lifelong immunity in most cases. Strengthening your immune system with Vitamin C + zinc supplements can also support overall health, reducing the risk of complications if you do get sick. With proper immunization and a strong immune defense, measles can be prevented before it spreads.
Rabies
Rabies is not just one of the deadliest viral diseases in the world—it’s a virtual death sentence once symptoms manifest, with a near-100% fatality rate. This disease remains a pressing public health issue, claiming the lives of nearly 430 Filipinos in 2024 alone per the Department of Health (DOH). The virus spreads through the saliva of infected animals, primarily dogs. Once the virus is in the body, it attacks the nervous system and leads to increasingly worse symptoms—fever, paralysis, confusion, and, in its final stages, respiratory failure.
Despite its terrifying consequences, rabies is entirely preventable. The moment you’re bitten or scratched by an animal, even your own pets, wash the wound immediately with soap and an antiseptic solution. Then, seek post-exposure prophylaxis (PEP), which includes the rabies vaccine, to inhibit the virus from spreading to the nervous system. Prevention also starts with responsible pet ownership: vaccinate your pets, avoid stray animals, and never ignore a bite. With quick action, rabies can be defeated before it even begins.
Hepatitis B
Not all viral infections cause immediate symptoms—some work silently, damaging the body over time. Hepatitis B is a prime example. Many individuals remain unaware they’re infected until it has already led to severe complications, such as liver cirrhosis or liver cancer. This virus spreads through contact with infected blood and bodily fluids, so activities like unprotected sex, sharing needles, and childbirth are common transmission routes.
Because symptoms don’t always appear early on, regular screening is essential, especially for those at higher risk. As with other viral diseases, early vaccination (newborn) remains the most effective prevention strategy. In addition, maintaining good liver health can help keep complications at bay. When it comes to hepatitis B, prevention and early detection can make all the difference.
Human Papillomavirus
Most people who have the human papillomavirus (HPV) don’t even realize it, but this seemingly silent virus can have life-changing consequences. As the leading cause of cervical cancer, HPV is responsible for thousands of women’s deaths in the country. It’s also linked to penile, anal, and throat cancers, as well as genital warts. While other viral infections can spread through casual contact, HPV is primarily transmitted through sexual activity, making protection and early detection crucial.
Beyond regular Pap smears for women and HPV tests for both sexes to detect early signs of infection, getting HPV vaccination is crucial, offering strong protection against the most dangerous strains of the virus. For sexually active individuals, practicing safe sex can also significantly reduce the risk of HPV-related diseases. Ultimately, preventing HPV and its complications comes down to a combination of awareness, proactive healthcare, and responsible choices.
While these viral diseases pose serious risks—including death—the power to prevent them is in your hands. From vaccinations to a healthy lifestyle, practical and effective measures can drastically reduce the risk of infection. To safeguard yourself and those around you, consider exploring the range of health products and vaccines available at Southstar Drug, both in-store and online. Taking that first step toward prevention is an investment in a healthier future.
