Dog Vaccinations in Alhambra: Core Vaccines, Schedules, and What Your Dog Actually Needs

Dog vaccine conversations tend to produce more confusion than clarity. Some owners are worried they're over-vaccinating. Others aren't sure which vaccines are legally required versus optional. Many just do whatever their previous vet recommended without fully understanding why. This post lays out what dogs in Alhambra and the surrounding SGV actually need — by law, by medical consensus, and by lifestyle.

At South Pasadena Animal Hospital, we tailor vaccine recommendations to each dog's specific situation. We're at 3116 W Main St in Alhambra — book online or call (626) 441-1314 to schedule a wellness exam and vaccine review.

What California law requires

California state law requires rabies vaccination for all dogs. This is non-negotiable — it's a public health law, not just a recommendation. Puppies receive their first rabies vaccine at 16 weeks or older. After the initial vaccine, a booster is due at 1 year, then every 3 years for adult dogs.

Rabies is a fatal disease in both animals and humans, and the vaccination is highly effective. It's also required for dog licenses in most California counties, including Los Angeles County.

Core vaccines: what most dogs need

Beyond rabies, the following vaccines are considered core — meaning they're recommended for virtually all dogs regardless of lifestyle, because the diseases they prevent are widespread, severe, or both.

DA2PP (Distemper, Adenovirus, Parvovirus, Parainfluenza)

This combination vaccine covers four serious diseases:

• Distemper — a systemic viral disease affecting the respiratory, gastrointestinal, and nervous systems. Often fatal in unvaccinated dogs.
• Adenovirus (hepatitis) — causes liver disease; can be severe or fatal.
• Parvovirus — a highly contagious gastrointestinal disease, especially deadly in puppies. Parvo can survive in soil for months and spreads easily at dog parks and on sidewalks.
• Parainfluenza — a respiratory virus that contributes to kennel cough.

DA2PP is given as a puppy series starting at 8 weeks, with boosters every 3–4 weeks until 16 weeks of age. After the initial series, a booster is given at 1 year, then every 3 years for adult dogs.

Lifestyle vaccines: based on your dog's actual risk

The following vaccines are recommended based on where your dog goes and what they're exposed to — not every dog needs all of them.

Bordetella (Kennel Cough)

Bordetella bronchiseptica is the primary bacterial cause of kennel cough, a contagious respiratory infection. Dogs who visit boarding facilities, groomers, dog parks, doggy daycare, or training classes are at significantly higher risk. Most boarding facilities and groomers in Alhambra and the SGV require it.

Bordetella is typically given annually for moderate-exposure dogs, or every 6 months for dogs with high or frequent exposure. It can be administered as an injection or intranasal spray.

Leptospirosis

Leptospirosis is a bacterial disease spread through the urine of infected wildlife — rats, raccoons, deer, and other animals. It's contracted through contact with contaminated water, soil, or surfaces. Southern California has wildlife corridors throughout the foothills and river areas, and urban rats are common enough in the SGV that leptospirosis exposure is a real consideration for many dogs.

It's especially worth discussing for dogs who hike, drink from streams or puddles, or have access to areas where wildlife are present. Lepto is given as a two-dose initial series and then annually.

Canine Influenza (H3N2 / H3N8)

Dog flu can spread rapidly in boarding and daycare environments. It's not required and isn't recommended for every dog, but for dogs with heavy exposure to other dogs — especially in group settings — it's worth considering. Ask us whether your dog's lifestyle warrants it.

Puppy vaccination schedule

Puppies receive maternal antibodies from their mother that gradually wane over the first weeks of life. The puppy vaccine series is timed to provide protection as those maternal antibodies decrease:

Age	Vaccines
8 weeks	DA2PP #1, Bordetella (if exposure risk)
11–12 weeks	DA2PP #2, Leptospirosis #1 (if recommended)
14–16 weeks	DA2PP #3, Rabies, Leptospirosis #2 (if started)
12–16 months	DA2PP booster, Rabies booster, Bordetella (annual)
Every 3 years after	DA2PP, Rabies (per California law)

Some puppies need a fourth DA2PP dose at 18–20 weeks if the series started early. We'll confirm the right schedule at your puppy's first visit.

Adult dogs: do they need annual vaccines?

Core vaccines (DA2PP and rabies) for adult dogs are not given annually — DA2PP is every 3 years and rabies every 3 years per California law after the first booster. This has been the standard protocol since updated guidelines replaced older annual schedules. Lifestyle vaccines like bordetella and leptospirosis remain annual or more frequent for dogs with ongoing exposure.

Annual wellness exams are still important even when vaccines aren't due. They're the time to run bloodwork, check weight and dental health, and catch early signs of problems that don't show obvious symptoms yet. Don't skip the annual visit just because no vaccines are scheduled.

What happens at a vaccine appointment at SPAH

Vaccines at SPAH are administered during a wellness exam — not as a drive-through service. The exam covers your dog's weight, heart and lung sounds, teeth, eyes, ears, coat, and any concerns you've noticed. This matters because vaccines should only be given to healthy animals. An exam first ensures your dog is in good shape to receive them, and it gives us a chance to flag anything you may not have noticed at home.

We'll also review your dog's exposure history and lifestyle to make sure we're recommending the vaccines that are actually appropriate — not just running through a standard checklist. Our pricing page has vaccine and exam fees listed in full. Book online or call us at (626) 441-1314.

Questions about dog vaccines in Alhambra