Answers customers, sells and gives you your time back
WhatsApp chatbot for vaccination clinics in Brazil, with the CRM included
Named customers, Jul 30 to Oct 10, 2026
| Customer | Customer messages | AI replies | Conversations handled | Outside business hours | AI replies in (median) | Days with messages |
|---|---|---|---|---|---|---|
| CEMIP medical clinic | 12.472 | 6.484 | 2.436 | 18,7% | 11,4 s | 37 |
| IMCVET veterinary clinic | 833 | 432 | 100 | 23% | 8,9 s | 12 |
| JP Gás Água e Rações gas and water distributor | 42.832 | 23.351 | 6.479 | 33,6% | 9,8 s | 70 |
| Nikiti Auto Center auto center | 4.912 | 3.548 | 900 | 19,5% | 14,4 s | 47 |
| Imobiliária Rodrigues & Ribeiro real estate agency | 6.090 | 2.759 | 823 | 33,2% | 18,4 s | 34 |
Operating numbers from each account's dashboard, same yardstick as the Index, measured on Oct 11, 2026. Published with each owner's permission. Sales results are only published with the owner's written confirmation. Full list at certu.com.br/casos.
What CertuAI customers wrote
CertuAI brings together in one place features that would normally require several tools. Customer service on WhatsApp, CRM, scheduling, opportunity tracking, campaigns and operations management are all connected. Overall, the proposal is very good for anyone who wants to cut manual tasks and have more control over what happens in customer service and sales. [...]
Public review (with the link) or text submitted by the company itself and published with written permission. The rating only appears when the source has a rating.
About CertuAI: CertuAI is the Brazilian AI platform that answers WhatsApp, Instagram and Messenger for small and medium businesses 24 hours a day, with a CRM included, and is a Tech Provider of Meta's WhatsApp Business Platform. Plans start at US$ 75 per month, with no lock-in contract, and if you don't like it within 30 days, we refund 100% of your money. Create my agent
Updated on September 19, 2026 · Written by Bernardo Villela, CEO of CertuAI · Florianópolis (SC)
People looking for a vaccine want to know if it is in stock, how much it costs and whether they need to book. The agent answers right away and leaves the next dose booked in the same conversation.
Before you start, see the AI agent demos and the CRM with clinic examples.
What is the best WhatsApp chatbot for vaccination clinics in Brazil?
The best WhatsApp chatbot for vaccination clinics in Brazil is the one that answers on the number the clinic already uses, with business rules written by you. The AI agent on WhatsApp for vaccination clinics is CertuAI's automatic assistant. It tells people which vaccines are available and the price of each, books the shot, says what vaccination card and ID to bring, leaves the next dose booked with a reminder before the day and logs requests for vaccination at a company.
Summary in 7 facts
- The agent answers right away and leaves the next dose booked in the same conversation.
- Before you start, see the AI agent demos and the CRM with clinic examples.
- The best WhatsApp chatbot for vaccination clinics in Brazil is the one that answers on the number the clinic already uses, with business rules written by you.
- CertuAI has no routine that looks up customers by dose interval and sends a message when the deadline passes.
- The AI answers what is written in the Brain, and vaccines are the case where that text goes stale fastest.
- If the list says it is in stock and the vial ran out that morning, the customer crosses town and goes home without the shot, and the AI seems to be at fault when the list is.
- CertuAI measured when patients write on WhatsApp across 17 clinics and practices that use CertuAI's AI: 28.2% of messages arrived outside Monday to Friday, 8 a.m. to 6 p.m., almost 3 in every 10.
By the numbers
| Number | What it means |
|---|---|
| 24 hours | From then on, the reminder for that time goes out on its own, 24 hours and 1 hour before, and the clinic can set up to three alerts per appointment. |
| 28,2% | CertuAI measured when patients write on WhatsApp at 17 clinics and practices that answer with CertuAI's AI: 28.2% of messages arrived outside Monday to Friday, 8am to 6pm, almost 3 in… |
| 19,259 messages | Source: CertuAI service database, 17 clinics and practices, 19,259 patient messages on WhatsApp from Jul 30 to Sep 30, 2026, measured Oct 1, 2026. |
| 1 hour | Because it becomes an appointment on the calendar, the reminder goes out on its own 24 hours and 1 hour before. |
| US$ 75 per month | The Start plan costs US$ 75 per month and already includes the WhatsApp agent, your business's Brain, the CRM, automatic follow-up and the AI assistants, which come with every paid plan. |
| US$ 120 per month | Pro costs US$ 120 per month and adds the landing page, the wallet and 10 people on the team instead of 5. |
Does the AI contact people who are overdue for a dose on its own?
No. CertuAI has no routine that looks up customers by dose interval and sends a message when the deadline passes. If you have read that in some material, the code does not do it.
What does exist works better than it sounds: on the day of the shot, the agent offers the next dose's time and leaves the appointment booked. From then on, the reminder for that time goes out on its own, 24 hours and 1 hour before, and the clinic can set up to three alerts per appointment. The difference is that the trigger is the booked time, not the dose schedule's calendar.
Stock that changes every day: how do you keep the answer from being wrong?
The AI answers what is written in the Brain, and vaccines are the case where that text goes stale fastest. If the list says it is in stock and the vial ran out that morning, the customer crosses town and goes home without the shot, and the AI seems to be at fault when the list is.
Two choices solve it. The first is to have one person responsible for updating the list whenever an item comes in or goes out, at the same moment the front counter finds out. The second is not to state stock in the conversation: the agent answers price, time and what to bring, and says it will confirm availability with the team before booking.
What does the AI do with each vaccination clinic message?
| Client message | What the AI does |
|---|---|
| "Do you have the flu vaccine today?" | Answers from the list you keep up to date |
| "How much does it cost?" | Gives the price you entered, without rounding |
| "Can my son get this vaccine?" | Doesn't advise; sends the question to nursing |
| "When is the next dose?" | Repeats the interval you wrote and offers to book the time |
| "Do I need to bring my vaccination card?" | Answers what to bring, along with the confirmation |
| "Do you vaccinate twenty employees at our company?" | Logs the address, date and headcount for the team to quote |
What CertuAI measured on clinic and practice WhatsApp
CertuAI measured when patients write on WhatsApp at 17 clinics and practices that answer with CertuAI's AI: 28.2% of messages arrived outside Monday to Friday, 8 a.m. to 6 p.m., almost 3 in 10. If the front desk works those hours, that's the part that waits until someone comes back.
| What was measured | Result |
|---|---|
| Patient messages that arrived outside Monday to Friday, 8am to 6pm | 28,2% |
| Messages that arrived on the weekend | 11,2% |
| Messages that arrived at night on a weekday, 6pm to midnight | 11,7% |
| Conversations that started outside Monday to Friday, 8am to 6pm | 29,9% |
Source: CertuAI service database, 17 clinics and practices, 19,259 patient messages on WhatsApp from Jul 30 to Sep 30, 2026, measured Oct 1, 2026. Business hours are Monday to Friday, 8am to 6pm, in each clinic's time zone. Test accounts, test contacts and imported history are excluded.
What changes in the clinic with an AI agent?
What changes is who answers first: the message no longer waits for you and is answered right away. Here are four everyday situations at the clinic before and after the CertuAI agent.
TodayCustomer calls to ask if the vaccine is in and nobody can leave the vaccination room
With CertuAIThe agent confirms availability and price right away, on WhatsApp
TodaySecond dose forgotten because nobody had time to call
With CertuAIThe second dose is booked on the day of the first, with a reminder before
TodayCustomer arrives without the vaccination card and the shot has to be redone another day
With CertuAIThe agent says what to bring along with the confirmation
TodayCompany vaccination request jotted on paper, with the wrong address
With CertuAILogged in the conversation, with date, place and number of people
What does a conversation handled by the AI look like?
Example conversation
Clinic AI agent
Customer: Do you have the flu vaccine in stock today? How much is it?
AI agent: The flu vaccine today: what you entered, for your price.
Customer: Do I need to bring my vaccination card and the prescription?
AI agent: Bring the vaccination card, a photo ID and the prescription, when the vaccine requires one.
Is an AI agent or manual customer service better for vaccination clinics?
The agent wins at repetitive tasks, and the person keeps winning at what takes judgment. Done manually, someone at the clinic has to stop what they are doing; with the CertuAI agent the reply goes out on its own and you join the conversation whenever you want.
| Aspect | The manual way | With the CertuAI agent |
|---|---|---|
| Asking whether a certain vaccine is available | Customer calls and waits for someone to leave the vaccination room | Answered right away, from the list you keep up to date |
| Next dose reminder | Depends on someone opening the spreadsheet and calling one by one | The next dose is already booked, and its reminder goes out 24 hours and 1 hour before |
| Private vaccine price | Repeated dozens of times a day | Answered automatically, at any hour |
| ID and vaccination card to bring | Customer arrives without them and the shot is delayed | Told in writing with the appointment confirmation |
| Request for a shot at home or at a company | Jotted on paper, with a risk of getting the address and quantity wrong | Logged in the conversation, with address, date and number of people |
What does the WhatsApp agent do for vaccination clinics?
It does the customer service that is yours today. You teach the business once in the Brain, CertuAI's knowledge base, and the agent answers clients your way, with your rules.
Availability and price per vaccine
The list you maintain, answered at any hour, including what is out of stock. Nobody has to leave the vaccination room to answer the phone.
Next dose booked on the day of the first
The agent offers the next dose's time in the same conversation as the shot. Because it becomes an appointment on the calendar, the reminder goes out on its own 24 hours and 1 hour before.
What to bring before leaving home
Vaccination card, photo ID and prescription, when the vaccine requires one, sent with the confirmation so nobody goes home without the shot.
At-home and at-company vaccination
Address, date, how many people and which vaccines are logged in writing, ready for your team to put together the quote and logistics.
Eligibility and reactions go straight to nursing
Any question about who can get a vaccine, clinical intervals or a reaction leaves automatic mode and goes to your team, and the agent never answers it.
What questions do clients send on WhatsApp?
They are always the same, and the agent answers each one on its own. These everyday messages at the clinic no longer depend on you having your phone in hand.
How does the agent start answering at the clinic?
In three steps, on the same day. No installation, no code and no changing the number clients already know.
Teach your business
In one conversation, you explain services, prices, hours and rules, as you would to a new employee.
How much does an AI agent on WhatsApp cost for vaccination clinics?
The Start plan costs US$ 75 per month and already includes the WhatsApp agent, your business's Brain, the CRM, automatic follow-up and the AI assistants, which come with every paid plan. Pro costs US$ 120 per month and adds the landing page, the wallet and 10 people on the team instead of 5. No lock-in contract and no setup fee.
Get started now
Create my agentWhat needs to be ready before turning the agent on at the clinic?
The agent answers what is written, and nothing beyond that. Have these points defined before you connect WhatsApp.
- The vaccine list with prices, and who at the clinic updates that list when an item comes in or goes out of stock
- The dose and booster schedule for each vaccine, with the interval the agent uses to offer the next dose's time
- What the customer needs to bring in each case: vaccination card, ID and prescription when the vaccine requires one
- Whether the shot requires an appointment or accepts walk-ins, and at what hours
- The terms for at-home and at-company vaccination: service radius, minimum number of people and fee
- The list of questions that always go to nursing, without passing through the agent
Whether the agent confirms availability from the Brain's list or only logs the request and your team confirms the stock.
The most common mistake: Leaving the vaccine list unchanged when stock changes. The agent keeps confirming it is in stock, the customer crosses town and goes home without the shot, and the conversation turns into a complaint instead of a vaccination. Read how to fix this.
Frequently asked questions from vaccination clinics
Does the agent say which vaccine a person should get?
No. Eligibility, clinical intervals and contraindications belong to your nursing team. The agent handles availability, price, scheduling, what to bring and the reminder for the booked time.
Does it answer correctly when a vaccine is out of stock?
It answers what is on the list you maintain. A vaccine that comes in and out of stock needs to be updated in the Brain, otherwise it keeps confirming availability.
Can it remember the second dose on its own?
CertuAI has no automatic outreach based on the dose interval. What works is leaving the next dose booked in the conversation about the first: from then on, the reminder for that time goes out on its own, 24 hours and 1 hour before.
Does it organize requests for vaccination at a company?
It gathers the address, date, number of people and which vaccines, and hands that to your team in writing to quote. Closing the deal stays with a person.
Other clinic questions CertuAI has answered
In what other fields does the CertuAI agent work?
In any business that serves customers on WhatsApp, because the Brain is written by you. These fields have a day-to-day closest to yours.
Where can I read more about CertuAI's WhatsApp agent?
These pages explain the same agent from another angle: how it works, price, common questions and comparisons between platforms.
In short
Answers availability and price, books the shot and leaves the next dose booked, with a reminder before the day. Each series is kept in the included CRM.
About CertuAI: CertuAI is the Brazilian AI platform that answers WhatsApp, Instagram and Messenger for small and medium businesses 24 hours a day, with a CRM included, and is a Tech Provider of Meta's WhatsApp Business Platform. Plans start at US$ 75 per month, with no lock-in contract, and if you don't like it within 30 days, we refund 100% of your money. Create my agent