A fortnight after the monsoon breaks, the same dog walks in every day: quiet, off its food, warm. Here is the biology behind that pattern, and the window in which this is a simple illness.
WRITTEN BY THE BOZO WAGS CLINICAL TEAM6 MIN READUPDATED JUNE 2026
14 days
Between the first heavy rain and the first tick-fever case of the season, almost every year.
3 organisms
Babesia, Ehrlichia and Anaplasma — all carried into the house by the same brown dog tick.
48 hours
How fast most dogs turn around on treatment, when we catch them in the first few days.
The curve we see every year
Ticks do not arrive with the rain — they hatch with it. Humidity above roughly seventy per cent lets eggs that have been sitting in your floor cracks and compound walls all summer complete their cycle. Two weeks of that, and the cases arrive together.
8
11
14
26
58
74
66
52
40
31
24
−2
−1
0
+1
+2
+3
+4
+5
+6
+7
+8
WEEKS FROM THE FIRST HEAVY RAINPEAK: WEEKS +2 TO +4
Ninety per cent of the problem is not on your dog
The tick you pull off is one stage of four. The other three are in the environment — behind skirting, in the gaps of a granite floor, under the kennel. Treating only the dog is why families come back in three weeks with the same case.
STAGE 1
Eggs in the floor cracks
STAGE 2
Larva — first blood meal
STAGE 3
Nymph — drops off, moults
STAGE 4
Adult — the one you find
One female lays up to two thousand eggs. If you find a single engorged adult, assume the room is part of the case and treat it too.
What it looks like, in order
There is no dramatic first day. That is the whole problem with this disease — the dog simply goes flat, and flat is easy to explain away as heat or a bad mood.
DAY 1–2
Quiet, off food, warm to touch
A fever you would miss unless you were looking. This is the cheap, easy end of the disease.
DAY 3–5
Pale gums, wobbly, dark urine
Red cells are being destroyed and platelets are falling. Still very treatable, but now it needs bloods.
DAY 6 ONWARDS
Bleeding, collapse, jaundice
Transfusion territory. Same drug, far worse odds. Nothing about the first week looked dramatic.
The window
A blood smear and a platelet count cost very little and answer the question in an hour. The difference between day two and day eight is the difference between tablets at home and a transfusion in a ward.
DAY 1–5 · TABLETS, HOME CARE
DAY 6–8 · ADMISSION LIKELY
DAY 9+ · CRITICAL
FIRST FEVERPLATELETS CRASHBLEEDING
Prevention that actually works
1
Preventive on a date
A monthly chew or a three-month collar, put in the calendar. Gaps in the schedule are where tick fever lives.
2
Treat the room, not the dog
Vacuum the cracks, wash bedding hot, spray skirting and kennel. Repeat at three weeks to catch the hatch.
3
Sixty-second check, weekly
Ears, between toes, under the collar, armpits, tail base. Pull straight out with a tick hook, no kerosene and no matches.
4
Every animal, same day
One untreated cat or the compound dog re-seeds the whole house within a fortnight.
MONSOON RULE OF THUMB
A flat dog with a fever in July gets bloods, not a wait-and-see.
Walk in or call ahead — a smear and a platelet count are done in-house at Akshayanagar, usually reported in the same hour.