Sanitation?

You maintain that public sanitation alone has overwhelmingly reduced the incidence of all major infectious diseases?

Advances in public sanitation measures have, undeniably, been a factor in disease prevention throughout history.  The ancient Romans had it all figured out with aqueducts and public toilets that fed into extensive sewer systems in their communities.  The middle ages was a dark era rife with superstitious misunderstandings of disease etiology (demons, spells & miasmas) and mostly ineffective and sometimes atrocious folk remedies but Dr. John Snow's thoroughly scientific epidemiological study of cholera incidence in the early 1800s was a paradigm shift. Most beneficial measures involve advances in purification of water, handling and removal of domestic, agricultural & industrial waste and food preparation & storage regulations. These measures restrict or remove human contact with potentially hazardous or infectious wastes of all types - human & animal feces, sewage, spoiled food, hazardous chemicals, etc. 

I'll admit that sanitation measures will aid in preventing, to a certain extent, polio, typhoid and hepatitis A as they are fecal/oral transmissions.  But the most frequently encountered fecal/oral diseases world-wide are actually diarrheal in nature and have viral, bacterial or parasitic causes for which, unfortunately, there are yet no vaccines. 

Prevention by vaccination is available for these diseases.  I've listed their transmission modes.

Adenovirus - Respiratory  
Anthrax - Respiratory
Diptheria - Respiratory
Tetanous - Injury/penetrating wounds
Pertussis (Wooping Cough) - Respiratory
Hepatitis A - Fecal/Oral
Hepatitis B - Bloodborne & body fluids
Haemophilus influenzae type b - Respiratory
Human Papillomavirus (HPV) - sexua| transmission
Influenza - Respiratory
Japanese Encephalitis - Mosquito (vector)
Rubeola Measles - Respiratory
Mumps - Respiratory
Rubella Measles - Respiratory  
Meningococcus Pnuemonia - Respiratory
Pneumococcus - Respiratory
Polio - Fecal/Oral
Rabies - Contact with infected animal (vector)
Rotavirus - Respiratory
Shingles - Residual from prior Varicella infection
Smallpox - Respiratory
Typhoid Fever - Fecal/Oral
Varicella (Chicken Pox) - Respiratory
Yellow Fever - Mosquito (vector)

Please provide us with your analysis of exactly how public sanitation measures have significantly contributed to the notable reduced incidence of the TWENTY non fecal/oral transmisson infectious diseases on the list. All are transmitted directly by either contact with body fluid, insect or animal vector contact, sexua| contact, injury or by a respiratory transmission mode. Most are respiratory where "droplet contact" occurs when the infected person sneezes or coughs directly on another person or the microorganisms become suspended in moist droplets in the air.  Have you ever seen an ultra-slow motion video of droplet sprays when someone sneezes? Infectious contact is made in the eyes or floating microbes are inhaled in via the mouth or nose.