zoonotic disease Archives

November 11, 2025November 10, 2025

Apex Scavengers Have a Purpose

People often react with disgust when they see videos of hyenas eating decaying remains of a dead cow or deer. Vultures have long been viewed negatively because people associate them with feeding on the carcasses of dead animals. However, these apex scavengers have a purpose in the natural world. They help control diseases that could otherwise spread uncontrollably.

The list of diseases that apex scavengers help prevent is extensive. Diseases like anthrax, botulism, salmonella, E. coli, and rabies are just some of the illnesses that could be avoided if healthy populations of apex scavengers were maintained. Between 1992 and 2006, the use of a veterinary drug caused India’s vulture populations to crash. This led to an increase in feral dogs consuming carrion, resulting in over 48,000 rabies deaths from dog bites.

Humans generally see apex scavengers as evil and have often destroyed them. The Red List of Threatened Species, published by the International Union for Conservation of Nature, states that 36% of apex scavengers are threatened or declining. Without their presence, smaller scavengers like rats thrive and spread zoonotic diseases that apex scavengers could help prevent.

Millions of people die each year from zoonotic diseases, and that number will rise if apex scavengers are eliminated. God created everything for a reason, and apex scavengers have a purpose. Their intentional destruction of scavengers (and predators) is a classic example of how human ignorance has caused human misery. When we look at the problems facing humanity today, many stem from the violation and misuse of the good things God created.

Reference: Discover magazine, November/December 2025, page 10, and discovermagazine.com.

October 13, 2022October 12, 2022

Infectious Diseases Can Spread from Animals to Humans

The Centers for Disease Control and Prevention tells us that three-quarters of “new or emerging infectious diseases” in humans originated in animals. Medical scientists call them zoonotic infections. Furthermore, six of every ten known infectious diseases can spread from animals to humans. Diseases that originated in animals include SARS, Zika, Ebola, West Nile, HIV, COVID, and Monkeypox. Some diseases, such as HIV, have jumped to humans because of sexual relationships between humans and animals.

As the human population grows, people have more contact with animals and use more animals for food. In addition, the pet trade has seen a massive increase, with a wider variety of animals being confined to homes and sharing everything from beds to meals with their human owners.

Those who blame God for the diseases that are such a serious problem should understand that God never intended for animals to replace humans as family members. A virus that may be of no consequence or even helpful to an animal can cause severe problems for humans. The Old Testament contains strict hygienic rules designed to minimize disease transmission when raising and using animals for food. The rules also forbid using blood as food and any sexual relationship with animals. (See Leviticus 17:12 and Deuteronomy 27:21.).

We may think the biblical instructions for using and managing animals were just for religious purposes. However, it is evident that God knew infectious diseases can spread from animals to humans, and He wanted to protect His people. This is one more example of the consequences of rejecting the Bible as a source of information on how we should live and what our priorities should be.

Reference: United States Centers for Disease Control and Prevention

January 21, 2021January 21, 2021

Zoonotic Diseases and Pandemics

The ancient Israelites’ diet consisted of very little meat, and most of that came from animals they raised. That was not true in the rest of the world. For many people in China and Africa, survival meant hunting animals and using them for food. We now know that many of the animals people ate were intermediate hosts for viruses. A virus can exist for many generations in a wild animal and mutate until it can jump to human populations, creating zoonotic diseases. The list of viral and bacterial diseases that have originated in wildlife grows constantly. A partial list includes SARS, MERS, Ebola, AIDS, Zika, Lyme Disease, rabies, swine flu, and COVID-19.

Wet markets, common in parts of Asia and Africa, are a significant source of zoonotic diseases. There animals, including rats, snakes, birds, bats, and monkeys, are kept in cages and killed when people purchase them for food. The filthy environment allows saliva, urine, and feces to become mixed with the blood of animals slaughtered on the spot. Experts say 376 wildlife species are known hosts to zoonotic pathogens, and at least 700,000 different viruses have the potential to jump to human populations. Christian Walzer, executive director of health for the Wildlife Conservation Society, calls wet markets “cauldrons of contagion.”

In Old Testament times, the Jews had very strict rules about what meat they could eat and how to prepare it. One of the priest’s jobs was to inspect the meat that people consumed to make sure it conformed to specific rules preventing zoonotic diseases. That was the world in which Christianity began, and early Christians benefitted from the rules they inherited. The instruction of the apostles was not to eat blood or animals that had been strangled. (See Acts 15:20,29 and Acts 21:25.)

In Acts 10:11-16, we read the account of God telling Peter, “What God has cleansed you should not call common.” The message was that all people are precious to God, but it also implied that there was no longer religious significance to eating the meat of various animals. The dietary laws that God gave Israel centuries before were “nailed to the cross” of Christ (Colossians 2:13-17). However, what is religiously acceptable is not always biologically advisable.

It seems that the battle of the 21st century may be zoonotic diseases caused by eating animals that carry viruses to which humans are not immune. There were good hygienic reasons for the instructions God gave to ancient Israel.

Data from National Wildlife magazine, February-March, 2021 pages 22–29.