National Geographic: Viruses
Texas Gateway: Virus Reproduction
Immunology: Virus Replication
NBC News: Why are viruses hard to kill?
Vaccines
Veterinary Medical Association: What are vaccines, and why do they matter?
Animal Health Association: Animal Medicines, Vaccines
Reuters: Russia registers world's first COVID-19 vaccine for animals
Culling
The Guardian: Decomposing mink in Denmark 'may have contaminated groundwater'
Washington Post: As swine fever spreads, Asian countries cull millions of pigs
NCSU: Alternative Methods for the Disposal of Swine Carcasses
The Counter: As slaughterhouses close, farmers may have to cull thousands of hogs a day.
New Security Beat: Pig Disease is Creating a Mountainous Solid Waste Problem
AzuraVesta Designs: Coronavirus Infographic
CDC: COVID-19 Symptoms
British Heart Foundation: Long Covid: what are the symptoms and how long does it take to recover?
Reducing the Spread
CDC: Social Distancing
CDC: Masks
UCSF: Masks
CDC: Hand Sanitizer
Defense One: US Army Creates Single Vaccine Against All COVID & SARS Variants, Researchers Say
History of Vaccines: How Vaccines Work (click begin/next)
History of Vaccines: Timeline
COVID-19 Vaccines
Pfizer: How Do Viruses Mutate and What it Means for a Vaccine?
CDC: About Variants
Johns Hopkins University: How Viruses Mutate And What Can Be Done About It
Tufts University: How Viruses Mutate and Create New Variants